Needle head cleaning device

Abstract

The utility model relates to the technical field of LED packaging, and provides a needle head cleaning device, which comprises a main body provided with an upper end and a lower end which are opposite to each other, the main body is provided with a colloid channel, the colloid channel penetrates through the main body, a colloid inlet and a colloid outlet are formed in the main body, and the colloid inlet is positioned at the upper end of the main body; the main body is further provided with an inclined blowing channel communicated with the colloid channel, and the inclined blowing channel is communicated with the side face of the colloid channel and inclines towards the lower end of the main body. According to the needle cleaning device, air is input into the oblique blowing channel, downward spiral airflow can be generated in the colloid channel, residual glue on a needle can be removed through the spiral airflow, pressure in the colloid channel can be reduced, the residual glue is sucked into the needle cleaning device, and the needle cleaning device is convenient to use. According to the needle cleaning device, the problems of adhesive carrying and adhesive pulling of a needle tip caused by poor needle cleaning effect are effectively avoided, the possibility of blockage of an oblique blowing channel is reduced, the cleaning effect is good, abrasion to the needle is not increased, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED packaging, and in particular relates to a needle cleaning device. Background Art

[0002] In the current LED packaging process, a glue injection machine is required to seal the LED devices. After the glue injection machine has been operating for a certain amount of time or for a certain period of time, the needle on the glue injection valve body of the glue injection machine must be cleaned to remove the residual glue on the needle to prevent the needle tip from carrying glue or pulling glue during subsequent glue dispensing due to the accumulation of residual glue on the needle, thereby causing uneven glue dispensing from the glue injection valve body, thereby affecting the light separation and color separation concentration of the LED device.

[0003] The current injection valve body needle cleaning devices are mainly divided into two categories: one is the vacuum absorber, which mainly uses a single vacuum adsorption method to absorb and clean the residual glue on the injection valve body needle; in the application scenarios of high-concentration glue, large-volume glue packaging, multi-needle structure valve body, etc., the vacuum absorber needs to discharge a large amount of gas when used, and the cleaning efficiency is low. In addition, the gas flow channel of its vacuum air path coincides with the movement channel of the inhaled residual glue, making the airway and air holes of the vacuum air path very easy to be blocked by the inhaled residual glue. The second is to use a cleaning object to clean the residual glue on the injection valve body needle by wiping; in this way, glue is easy to remain on the cleaning object during cleaning. In order to avoid the failure of the cleaning effect, the cleaning object needs to be replaced frequently, and the wiping method will accelerate the wear rate of the needle, which will greatly increase the packaging cost. Utility Model Content

[0004] The purpose of the utility model is to overcome at least one of the deficiencies of the above-mentioned prior art and to provide a needle cleaning device that can remove residual glue on the needle and absorb the residual glue through spiral air blowing, thereby reducing the possibility of air path blockage and improving cleaning efficiency while ensuring the cleaning effect and not increasing the wear on the needle.

[0005] The technical solution of the utility model is: a needle cleaning device, comprising: a main body, having an upper end and a lower end opposite to each other, the main body being provided with a colloid channel, the colloid channel penetrating the main body and having a glue inlet and a glue outlet formed on the main body, the glue inlet being located at the upper end of the main body; the main body being further provided with an oblique air blowing channel connected to the colloid channel, the oblique air blowing channel being connected to the side of the colloid channel and being inclined toward the lower end of the main body.

[0006] As a further improvement of the present technical solution, the oblique air blowing channel includes a first oblique air blowing channel and a second oblique air blowing channel, the second oblique air blowing channel is located below the first oblique air blowing channel, and the first oblique air blowing channel and the second oblique air blowing channel are staggered in the up and down directions.

[0007] As a further improvement of the technical solution, the oblique blowing channel includes at least a pair of first oblique blowing channels which are arranged to be offset with respect to the center axis of the colloid channel.

[0008] As a further improvement of the technical solution, the main body is provided with at least two colloid channels, and each of the colloid channels is connected to at least one of the first oblique air blowing channels and / or at least one of the second oblique air blowing channels.

[0009] As a further improvement of the technical solution, the main body includes a cover tube and an end cover, and the colloid channel runs through the upper end and the lower end of the cover tube; the end cover is connected to the upper end of the cover tube by a fastener and exposes the colloid channel.

[0010] As a further improvement of the present technical solution, the main body has an air inlet hole, a first channel section and a second channel section, the air inlet hole is arranged on the side of the cover tube, the upper end of the cover tube is provided with an air inlet groove, the air inlet groove and the end cover are enclosed to form the second channel section, the first channel section connects the bottom surface of the air inlet groove and the air inlet hole, one end of the oblique blowing channel is connected to the side of the air inlet groove, and the other end is connected to the colloid channel.

[0011] As a further improvement of the technical solution, the air inlet groove is annular and located at the periphery of the colloid channel; and the end cover is provided with a colloid opening facing the colloid channel.

[0012] As a further improvement of the present technical solution, the needle cleaning device further includes a glue storage member, and the glue storage member is provided with a glue storage cavity connected to the glue outlet.

[0013] As a further improvement of the technical solution, a first exhaust hole is provided at one end of the glue storage member close to the glue outlet.

[0014] As a further improvement of the technical solution, a receiving groove is provided at the lower end of the main body at the periphery of the colloid channel, and the receiving groove is used to receive at least part of the glue storage member; a second exhaust hole is provided on the side wall of the receiving groove where the first exhaust hole is set.

[0015] The utility model provides a needle cleaning device, which includes a main body. Specifically, the main body has an upper end and a lower end opposite to each other, and the main body is provided with a colloid channel, the colloid channel runs through the main body and is provided with a glue inlet and a glue outlet, the glue inlet is located at the upper end of the main body; the main body is also provided with an oblique air blowing channel connected to the colloid channel, the oblique air blowing channel is connected to the side of the colloid channel and is inclined toward the lower end of the main body. When in use, the needle to be cleaned can be firstly arranged above the glue inlet (in the direction from the lower end to the upper end); secondly, gas is input into the oblique blowing channel, and preferably compressed air is input; the gas passes through the oblique blowing channel and enters the colloid channel. Since the oblique blowing channel is inclined toward the lower end of the main body, the gas will obliquely hit the wall of the colloid channel, thereby forming a spiral airflow in the colloid channel directed toward the lower end of the main body, so the downward spiral airflow can blow the residual glue off the needle to be cleaned; at the same time, the blown-in gas can increase the air flow rate in the colloid channel, thereby reducing the pressure in the colloid channel, and then can adsorb the blown-off residual glue, so that the residual glue enters the main body from the glue inlet. Therefore, the utility model can not only generate a downward spiral airflow in the colloid channel by inputting gas into the oblique blowing channel, so as to remove the residual glue on the needle tip through the spiral airflow, but also reduce the pressure in the colloid channel to achieve an adsorption effect, and then suck the residual glue into the needle cleaning device, effectively avoiding the problem of glue on the needle tip and glue pulling caused by poor needle cleaning effect, and because the oblique blowing channel and the colloid channel do not overlap, the possibility of clogging of the oblique blowing channel is reduced, the cleaning effect is excellent without increasing the wear on the needle tip, and the cleaning efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is a three-dimensional diagram of a needle cleaning device provided by the present utility model embodiment;

[0018] Figure 2 is a top view of the needle cleaning device (facing the colloid channel) provided in the utility model embodiment;

[0019] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0020] Figure 4 yes Figure 3A partial enlarged view of point C in the middle;

[0021] Figure 5 yes Figure 2 Sectional view at the middle BB;

[0022] Figure 6 It is a cross-sectional stereoscopic schematic diagram of the needle cleaning device (at position BB) provided by the present utility model embodiment;

[0023] Figure 7 It is an exploded view of the main body of the needle cleaning device provided by the present utility model embodiment;

[0024] Figure 8 It is a three-dimensional diagram of a cover cylinder in a needle cleaning device provided by the present utility model embodiment;

[0025] Fig. 9 It is an exploded view of the main body of the needle cleaning device provided by the utility model from another angle;

[0026] Fig.10 It is a schematic projection diagram of the needle, the colloid channel and the oblique blowing channel in the needle cleaning device provided by the utility model embodiment along the axial direction of the main body. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that the terms “setting” and “connection” should be understood in a broad sense. For example, it can be directly setting or connecting, or it can be indirectly setting or connecting through a central component or a central structure.

[0029] In addition, if there are terms such as "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientation or positional relationship in the embodiments of the present invention, they are based on the orientation or positional relationship or the conventional placement state or use state shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure, feature, device or element referred to must have a specific orientation or positional relationship, nor must it be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] The various specific technical features and embodiments described in the specific implementation methods can be combined in any suitable manner unless there is any contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in the present utility model will not be described separately.

[0031] The utility model provides a needle cleaning device, please refer to Figures 1 to 9 The needle cleaning device includes a main body 100. Specifically, the main body 100 has an upper end (the end of the main body 100 facing the needle to be cleaned when in use is the upper end) and a lower end, and the main body 100 is provided with a colloid channel 10, the colloid channel 10 runs through the main body 100 and is formed with a glue inlet 11 and a glue outlet 12 on the main body 100, and the glue inlet 11 is located at the upper end of the main body 100; the main body 100 is also provided with an oblique blowing channel 90 connected to the colloid channel 10, the oblique blowing channel 90 is connected to the side of the colloid channel 10 and is inclined toward the lower end of the main body 100, that is, one end of the oblique blowing channel 90 connected to the colloid channel 10 is closer to the lower end of the main body 100 than the end of the oblique blowing channel 90 away from the colloid channel 10. When in use, the needle to be cleaned can be first placed above the glue inlet 11; secondly, external gas, preferably compressed air, is input into the oblique blowing channel 90; the gas passes through the oblique blowing channel 90 and enters the colloid channel 10. Since the oblique blowing channel 90 is inclined toward the lower end of the main body 100, the input gas will obliquely hit the wall of the colloid channel 10, thereby forming a spiral airflow in the colloid channel 10 directed toward the lower end of the main body 100, so the downward spiral airflow can blow the residual glue off the needle to be cleaned; at the same time, the blown-in gas can increase the air flow rate in the colloid channel 10, thereby reducing the pressure in the colloid channel 10, and then can adsorb the blown-off residual glue, so that the residual glue enters the main body 100 from the glue inlet 11. Therefore, the utility model can input gas into the oblique blowing channel 90, which can not only generate a downward spiral airflow in the colloid channel 10, so as to remove the residual glue on the needle tip through the spiral airflow, but also reduce the pressure in the colloid channel 10 to achieve an adsorption effect, and then suck the residual glue into the needle cleaning device, effectively avoiding the problem of glue on the needle tip and glue pulling caused by poor needle cleaning effect. Moreover, since the oblique blowing channel does not overlap with the colloid channel 10, the possibility of clogging of the oblique blowing channel is reduced, the cleaning effect is excellent without increasing the wear on the needle tip, and the cleaning efficiency is improved.

[0032] For oblique blowing channel 90, please combine Figure 3 and Fig.10It can be understood that, on the plane projected along the axial direction D of the main body 100, a point H on the central axis of the oblique blowing channel 90 away from the end of the colloid channel 10 forms a connecting line HF with the central point F of the colloid channel 10, and an angle θ between the connecting line HF and the extension line HG of the central axis of the oblique blowing channel 90 is greater than 0 (such as Fig.10 As shown), and when in use, the needle can be arranged above the center point F of the colloid channel 10 (as shown Fig.10 As shown, the projection 300 of the needle coincides with the center point F of the colloid channel 10), so that the gas blown out of the oblique blowing channel 90 can be blown to the residual glue on the side of the needle, thereby improving the cleaning efficiency.

[0033] See also Figures 1 to 6 Preferably, the oblique blowing channel 90 may include a first oblique blowing channel 20, and may also include a second oblique blowing channel 30, and the second oblique blowing channel 30 may be located below the first oblique blowing channel 20. When in use, the input gas may be discharged into the colloid channel 10 through the first oblique blowing channel 20 and / or the second oblique blowing channel 30, thereby forming a spiral airflow facing the lower end in the colloid channel 10. In this arrangement, more gas may be discharged into the colloid channel 10 at the same time, thereby increasing the strength of the spiral airflow, improving the blowing strength for the residual glue, and further reducing the pressure in the colloid channel 10, thereby enhancing the adsorption effect.

[0034] Please combine Figures 1 to 6 It can be understood that the first oblique blowing channel 20 and the second oblique blowing channel 30 are connected to the side of the colloid channel 10 and are inclined toward the lower end of the main body 100. Specifically, the end of the first oblique blowing channel 20 (the end of the first oblique blowing channel 20 close to the colloid channel 10) is connected to the side of the colloid channel 10, and the end of the first oblique blowing channel 20 is inclined toward the main body 100 relative to the initial end of the first oblique blowing channel 20 (the end of the first oblique blowing channel 20 far from the colloid channel 10). Similarly, the end of the second oblique blowing channel 30 (the port of the second oblique blowing channel 30 close to the colloid channel 10) is connected to the side of the colloid channel 10, and the end of the second oblique blowing channel 30 is inclined toward the lower end of the main body 100 relative to the initial end of the second oblique blowing channel 30 (the port of the second oblique blowing channel 30 away from the colloid channel 10). This arrangement can make the input gas hit the wall of the colloid channel 10 obliquely to form a spiral airflow.

[0035] Recombination Figure 7 As a first arrangement mode of the first oblique air blowing channel 20 and the second oblique air blowing channel 30, the first oblique air blowing channel 20 and the second oblique air blowing channel 30 can be arranged in parallel along the axial direction D of the main body 100, which is more convenient for processing.

[0036] Recombination Figure 8 As a second arrangement mode of the first oblique blowing channel 20 and the second oblique blowing channel 30, the first oblique blowing channel 20 and the second oblique blowing channel 30 can be staggered in the up and down directions, that is, the center of the first oblique blowing channel 20 and the center of the second oblique blowing channel 30 can be connected to form an oblique line, and the oblique line and the 100 axial direction D (direction from the upper end to the lower end) of the main body can form an acute angle, so that the residual glue can be blown away from multiple angles, so that the angle of the gas blown into the colloid channel 10 is adapted, and the cleaning effect is further improved. In addition, the utility model may also include the first oblique blowing channel 20 and the second oblique blowing channel 30 being staggered in the horizontal direction.

[0037] It can be understood that the above two methods are only preferred embodiments of the present invention. The present invention is not limited to the arrangement of the first oblique blowing channel 20 and the second oblique blowing channel 30. As long as they can clean the needle to be cleaned, for example, the first oblique blowing channel 20 and the second oblique blowing channel 30 can be arranged side by side, or arranged at equal intervals around the same center of a circle, etc.

[0038] For further information, see Figure 8 , a plurality of second oblique blowing channels 30 may be provided correspondingly below the first oblique blowing channel 20, so that more gas can be discharged into the colloid channel 10 at the same time, thereby improving the blowing intensity and adsorption effect on the residual glue. In addition, the center of the first oblique blowing channel 20 can be arranged in an oblique line with the center of the plurality of second oblique blowing channels 30, and the angle of the gas blown into the colloid channel 10 can be adapted to improve the cleaning effect.

[0039] Preferably, please combine Figures 4 to 8 The cross-sections of the first oblique blowing channel 20 and the second oblique blowing channel 30 may be triangular, rectangular, polygonal, elliptical or circular, etc., and the present invention does not impose any limitation on this.

[0040] Preferably, please combine Figures 3 to 8, multiple first oblique blowing channels 20 can be arranged at equal intervals around the center of the colloid channel 10 as the center of the circle, or the oblique blowing channel 90 includes at least a pair of first oblique blowing channels 20 offset with the center line axis E of the colloid channel 10, that is, each pair of first oblique blowing channels 20 can be offset with the center line axis E of the colloid channel 10, specifically, the first end of a first oblique blowing channel 20 located on the side of the colloid channel 10 is offset with the second end of another first oblique blowing channel 20 located on the side of the colloid channel 10, that is, after the first end is rotated 180 degrees along the axial direction (from the upper end to the lower end) of the colloid channel 10, it does not overlap with the second end, so that the gas blown into the colloid channel 10 can be more balanced, and during the cleaning process, the spiral airflow is made more stable to avoid airflow turbulence and affect cleaning. Similarly, multiple second oblique blowing channels 30 can also be arranged at equal intervals around the center of the colloid channel 10, or each pair of second oblique blowing channels 30 can be staggered about the center line axis of the colloid channel 10, so as to make the gas blown into the colloid channel 10 more balanced and the spiral airflow more stable, thereby avoiding airflow turbulence that affects cleaning.

[0041] For colloid channel 10, see Figures 1 to 3 It is understandable that the colloid channel 10 can be connected to a plurality of first oblique blowing channels 20 and / or a plurality of second oblique blowing channels 30, so that more gas can be discharged into the colloid channel 10 at the same time, thereby improving the blowing intensity and adsorption effect on the residual glue and further reducing the possibility of clogging of the blowing channel. In a specific application, one colloid channel 10 can correspond to two or more groups of oblique blowing channels 90, and each group of oblique blowing channels 90 can be arranged along the circumference of the colloid channel 10.

[0042] Preferably, the main body 100 may be provided with at least two colloid channels 10, so that multiple needles to be cleaned can be cleaned at the same time, thereby improving the cleaning speed and being convenient for use in multiple needle cleaning scenarios in factories; and each colloid channel 10 may be connected to at least one first oblique blowing channel 20, and / or at least one second oblique blowing channel 30, so as to form a spiral airflow in the colloid channel 10.

[0043] Preferably, the colloid channel 10 can pass through the main body 100 from the upper end to the lower end of the main body 100. Since the colloid channel 10 has a simple structure and no bends are provided, this can not only better control the formation of the spiral airflow and avoid the spiral airflow changing direction when passing through the bend of the colloid channel 10 and affecting the cleaning effect, but also avoid residual glue clogging the bend of the colloid channel 10.

[0044] Preferably, the cross section of the colloid channel 10 can be triangular, rectangular, polygonal, elliptical or circular, etc., and the utility model does not limit this. In this embodiment, the colloid channel 10 can preferably be an elliptical or circular shape with a smooth transition to avoid corners that may overlap and clamp excess glue to form blockage.

[0045] In some embodiments, see Figures 7 to 9 The main body 100 may include a cover tube 40 and an end cover 50, and the colloid channel 10 runs through the upper end and the lower end of the cover tube 40 to facilitate the passage of residual glue, which is convenient for connection and can be used for convenient processing.

[0046] Preferably, the end cap 50 can be connected to the upper end of the cover tube 40 by a fastener and expose the colloid channel 10. The fastener can be a screw, a screw pin or a stud, etc., which is very convenient to install and remove. In other embodiments, the end cap 50 can also be connected to the cover tube 40 by a bonding member or a clamping structure.

[0047] Preferably, see Figures 3 to 7 The main body 100 has an air inlet 60, a first channel section 70 and a second channel section 80. The air inlet 60 is arranged on the side of the cover tube 40. The upper end of the cover tube 40 is provided with an air inlet groove 41 connected to the first oblique blowing channel 20. The groove wall surface of the air inlet groove 41 and the end cover 50 are enclosed to form the second channel section 80. The first channel section 70 is connected to the bottom surface of the air inlet groove 41 and the air inlet 60. One end of the oblique blowing channel 90 is connected to the side of the air inlet groove 41, and the other end is connected to the colloid channel 10. Figure 4 As shown, the input gas can enter the colloid channel 10 through the air inlet 60, the first channel section 70, the second channel section 80 and the oblique blowing channel 90 (the first oblique blowing channel 20 and / or the second oblique blowing channel 30) respectively.

[0048] Further, please combine Figures 3 to 7 The air inlet hole 60 can penetrate the side surface of the cover tube 40 along the radial direction of the cover tube 40 (perpendicular to the direction from the upper end to the lower end), and the first channel section 70 can penetrate the groove wall surface of the air inlet groove 41 along the axial direction of the cover tube 40 (i.e., along the axial direction D of the main body 100) and connect to the air inlet hole 60, which is very convenient for processing.

[0049] In some embodiments, the air inlet hole 60 may also directly penetrate the groove wall surface of the air inlet groove 41 and communicate with the air inlet groove 41 without being connected to the air inlet groove 41 through the first channel section 70, which makes processing easier.

[0050] Preferably, please combine Figure 3 and Figure 7The air inlet groove 41 can be annularly located at the periphery of the colloid channel 10, so that the periphery of the colloid channel 10 forms a first convex portion 43 at the upper end of the main body 100; the end cover 50 is provided with an opening 51 facing the colloid channel 10. When the end cover 50 is connected to the cover tube 40, the end cover 50 covers the air inlet groove 41, and the colloid channel 10 is exposed to the opening 51, and the groove side wall of the air inlet groove 41, the groove bottom surface, the outer surface of the first convex portion 43 and the surface of the end cover 50 facing the cover tube 40 can form a second channel section 80.

[0051] For end cap 50, please combine Figure 3 and Figure 7 Preferably, the end cover 50 may have a first connecting portion 52 extending radially outward (from the middle of the end cover 50 to the edge), and a first connecting hole 521 is provided on the first connecting portion 52. The cover tube 40 may have a second connecting portion 42 on the periphery of the air inlet groove 41, and a second connecting hole 421 is provided on the second connecting portion 42. Moreover, the first connecting hole 521 and the second connecting hole 421 may be arranged away from the gas channel (such as the air inlet hole 60, the first channel section 70, the second channel section 80 or the colloid channel 10, etc.), and the fastener connects the end cover 50 and the cover tube 40 by connecting the first connecting hole 521 and the second connecting hole 421. This also avoids the fastener extending into the gas channel when inserted to affect the sealing of the gas channel, or obstructing the airflow, affecting the strength or direction of the airflow, etc., thereby avoiding affecting the cleaning effect.

[0052] Preferably, see Figure 7 The height of the first protrusion 43 can be slightly less than or equal to the height of the end cover 50, that is, the farthest distance from the first protrusion 43 to the lower end of the main body 100 can be slightly less than or equal to the farthest distance from the end cover 50 to the lower end of the main body 100, so that it is convenient to place the needle to be cleaned above the first protrusion 43 to facilitate cleaning of the first protrusion 43, and it is also convenient for the end cover 50 to surround the first protrusion 43 to protect the first protrusion 43.

[0053] Preferably, the end cover 50 may be in the shape of a round plate or a square plate, etc., so that a fastener can pass through the end cover 50 to fix the end cover 50 to the cover cylinder 40 .

[0054] For cover cartridge 40, please combine Figure 1 , Figure 7 and Figure 8 The cover tube 40 can be in the shape of a rectangular block, a cylinder, a rectangular column, a cylinder (the upper end of the cover tube 40 is covered with a cylinder to have enough space to set the gas channel, and the lower end is a hollow cylinder) or a rectangular tube (the upper end of the cover tube 40 is covered with a rectangular block to have enough space to set the gas channel, and the lower end is a hollow rectangular tube). In this way, on the basis of ensuring that the cover tube 40 has enough space to set the gas channel, it is also convenient for fasteners to pass through the end cover 50 to fix the end cover 50 to the cover tube 40.

[0055] In some embodiments, see Figures 1 to 6 The needle cleaning device may further include a glue storage member 200, which is provided with a glue storage chamber 210 connected to the glue outlet 12. The residual glue enters the main body 100 through the glue inlet 11 and then enters the glue storage chamber 210 through the glue outlet 12 to store the residual glue.

[0056] Preferably, see Figure 3 , Figure 5 and Figure 6 A first exhaust hole 220 may be provided at one end of the glue storage member 200 close to the glue outlet 12 for exhausting the air in the glue storage cavity 210 to balance the pressure in the glue storage cavity 210 .

[0057] Preferably, please combine Fig. 9 A receiving groove 46 may be provided at the lower end of the main body 100 on the periphery of the colloid channel 10, and the receiving groove 46 is used to accommodate at least part of the glue storage member 200 to protect the glue storage member 200; a second exhaust hole 45 corresponding to the first exhaust hole 220 is provided on the side wall of the receiving groove, which is used to facilitate the discharge of air in the glue storage cavity 210 and balance the pressure in the glue storage cavity 210.

[0058] Furthermore, the receiving groove 46 can be located in a ring shape on the periphery of the colloid channel 10, so that the periphery of the colloid channel 10 forms a second protrusion 44 at the lower end of the main body 100, and the second protrusion 44 faces the glue storage cavity 210 or is at least partially accommodated in the glue storage cavity 210, thereby facilitating the residual glue to fall into the glue storage cavity 210.

[0059] Preferably, the glue storage member 200 may be in a barrel shape, etc., as long as it can store the remaining glue, and the present invention does not impose any limitation on this.

[0060] Preferably, the glue storage member 200 can be connected to the main body 100 by means of adhesives, fasteners or a snap-on structure.

[0061] During processing, refer to Figure 1 First, a colloid channel 10 may be opened at the upper end of the main body 100; secondly, an air inlet groove 41 may be opened at the periphery of the colloid channel 10, and a first convex portion 43 may be formed. Figure 7 Then, an oblique blowing channel 90 (a first oblique blowing channel 20 and / or a second oblique blowing channel 30) is provided on the side surface of the first convex portion 43 (the wall surface facing the air inlet groove 41), see Figure 1 and Figure 7 At the same time, the main body 100 may be provided with (the first channel section 70 and) the air inlet 60, and the air inlet 60 is connected to the air inlet groove 41, see Figures 4 to 7Finally, the end cover 50 is arranged on the main body 100 to form interconnected gas channels (the interconnected air inlet 60, the first channel section 70, the second channel section 80, the first oblique air blowing channel 20, the second oblique air blowing channel 30 and the colloid channel 10). In this way, when preparing the needle cleaning device, there is no need to try to open interconnected gas channels in the closed main body 100. Not only is the processing very convenient, but before covering the end cover 50, it is possible to observe with the naked eye whether the gas channels are connected, thereby effectively reducing the failure rate of product preparation.

[0062] When using, refer to Figure 1 , Figure 3 and Figure 4 First, an external air intake device (the air intake device may include one or more of compressed gases such as compressed air, compressed oxygen, compressed nitrogen, compressed hydrogen, compressed argon, compressed nitrogen, etc.) may be connected to the air intake hole 60 of the needle cleaning device; secondly, the gas channel of the needle cleaning device (such as the air intake hole 60, the first channel section 70, the second channel section 80, the first oblique air blowing channel 20 and the second oblique air blowing channel 30 and the colloid channel 10) may be cleaned by air sweeping or the like; then, the needle to be cleaned is arranged above the glue inlet 11 of the needle cleaning device; and then the air intake device is controlled to input compressed gas into the gas channel. When the compressed gas passes through the gas channel, the compressed gas is discharged from the gas channel. When discharged into the colloid channel 10 through the first oblique blowing channel 20, the compressed gas will obliquely hit the wall of the colloid channel 10, thereby forming a spiral airflow facing the lower end in the colloid channel 10, and the spiral airflow will blow the residual glue off the needle to be cleaned and blow it into the main body 100. In addition, the blown compressed gas can increase the air flow rate in the colloid channel 10, reduce the pressure in the colloid channel 10, and thus adsorb the residual glue, so that the residual glue enters the main body 100 from the glue inlet 11, and finally enters the glue storage cavity 210 from the glue outlet 12, so that the needle can be cleaned. It is simple and convenient to use and has high cleaning efficiency.

[0063] The utility model provides a needle cleaning device, which includes a main body 100. Specifically, the main body 100 has an upper end and a lower end opposite to each other, and the main body 100 is provided with a colloid channel 10, the colloid channel 10 runs through the main body 100 and is provided with a glue inlet 11 and a glue outlet 12, and the glue inlet 11 is located at the upper end of the main body 100; the main body 100 is also provided with an oblique air blowing channel 90 connected to the colloid channel 10, and the oblique air blowing channel 90 is connected to the side of the colloid channel 10 and is inclined toward the lower end of the main body 100. Therefore, the utility model can input gas into the oblique blowing channel 90, which can not only generate a downward spiral airflow in the colloid channel 10, so as to remove the residual glue on the needle tip through the spiral airflow, but also reduce the pressure in the colloid channel 10 to achieve an adsorption effect, and then suck the residual glue into the needle cleaning device, effectively avoiding the problem of glue on the needle tip or glue pulling caused by poor needle cleaning effect. Moreover, since the oblique blowing channel 90 does not overlap with the colloid channel 10, the possibility of clogging of the oblique blowing channel is reduced, the cleaning effect is excellent without increasing the wear on the needle tip, and the cleaning efficiency is improved.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A needle cleaning device, characterized in that: include: A main body, having an upper end and a lower end opposite to each other, the main body being provided with a colloid channel, the colloid channel penetrating the main body and having a glue inlet and a glue outlet formed on the main body, the glue inlet being located at the upper end of the main body; The main body is further provided with an oblique air blowing channel connected to the colloid channel. The oblique air blowing channel is connected to the side of the colloid channel and is inclined toward the lower end of the main body.

2. The needle cleaning device according to claim 1, characterized in that: The oblique air blowing channel includes a first oblique air blowing channel and a second oblique air blowing channel, the second oblique air blowing channel is located below the first oblique air blowing channel, and the first oblique air blowing channel and the second oblique air blowing channel are staggered in the up and down directions.

3. The needle cleaning device according to claim 1, characterized in that: The oblique blowing channel comprises at least a pair of first oblique blowing channels which are staggered with respect to the central axis of the colloid channel.

4. The needle cleaning device according to claim 2, characterized in that: The main body is provided with at least two colloid channels, and each of the colloid channels is connected to at least one of the first oblique air blowing channels and / or at least one of the second oblique air blowing channels.

5. The needle cleaning device according to any one of claims 1 to 4, characterized in that: The main body comprises a cover tube and an end cover, the colloid channel runs through the upper end and the lower end of the cover tube; the end cover is connected to the upper end of the cover tube through a fastener and exposes the colloid channel.

6. The needle cleaning device according to claim 5, characterized in that: The main body has an air inlet hole, a first channel section and a second channel section. The air inlet hole is arranged on the side of the cover tube. The upper end of the cover tube is provided with an air inlet groove. The air inlet groove and the end cover are enclosed to form the second channel section. The first channel section connects the bottom surface of the air inlet groove and the air inlet hole. One end of the oblique blowing channel is connected to the side of the air inlet groove, and the other end is connected to the colloid channel.

7. The needle cleaning device according to claim 6, characterized in that: The air inlet groove is annular and located at the periphery of the colloid channel; the end cover is provided with a colloid opening facing the colloid channel.

8. The needle cleaning device according to any one of claims 1 to 4, characterized in that: The needle cleaning device also includes a glue storage member, and the glue storage member is provided with a glue storage cavity connected to the glue outlet.

9. The needle cleaning device according to claim 8, characterized in that: The glue storage component has a first exhaust hole at one end close to the glue outlet.

10. The needle cleaning device according to claim 9, characterized in that: The lower end of the main body is provided with a receiving groove at the periphery of the colloid channel, and the receiving groove is used to receive at least part of the glue storage member; the groove side wall of the receiving groove is provided with a second exhaust hole arranged corresponding to the first exhaust hole.

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