Long-service-life needle floating type dispensing mechanism

Abstract

The utility model discloses a long-service-life needle floating type glue dispensing mechanism which comprises a fixing frame, a glue inlet pipe, a glue dispensing head, a floating spring and a glue dispensing needle, a sleeve hole is formed in the fixing frame, and an annular clamping groove is formed in the lower bottom face of the fixing frame around the sleeve hole. The lower end of the glue inlet pipe is provided with an abutting face making contact with the upper end face of the fixing frame, and a glue discharging hole is formed in the middle of the abutting face. The upper part of the dispensing head penetrates through the sleeve hole, the upper end of the dispensing head is fixedly inserted into the glue discharging hole, and the middle part is provided with an annular bulge; the floating spring is clamped in the annular clamping groove in a compressed state, and the lower end of the floating spring abuts against the upper end face of the annular outer protrusion. The upper end of the dispensing needle is connected with the lower part of the dispensing head. The glue dispensing device has the advantages that no floating spring is arranged between the upper end of the glue dispensing needle and the lower portion of the glue dispensing head, but the floating spring is arranged between the lower bottom face of the fixing frame and the upper end face of the annular outer protrusion, so that the service life of the glue dispensing needle is long, and the ball bushing is arranged for isolation protection and friction reduction; the sliding friction force between the outer wall of the upper part of the dispensing head and the inner wall of the sleeve hole is small, so that the service life of the dispensing head is also long.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing, in particular to a high-life needle floating dispensing mechanism. Background Technique

[0002] In industrial applications, all machine equipment for glue dotting, coating, spraying, filling, and sprinkling are collectively referred to as dispensing equipment. The application of dispensing equipment is very extensive, and it has been widely used in various processes involving dispensing technology and fluid control in industrial production.

[0003] In the related art, when the dispensing equipment dispenses glue on a product, since the viscosity of the dispensing material (such as paint) is relatively low, generally, during the dispensing process of such materials, the distance between the dispensing needle and the product should not be too large, otherwise, it is difficult to control the dispensing position or dispensing trajectory. However, due to the possible unevenness of the product surface itself, during the movement of the dispensing needle, the dispensing needle may scrape against the product surface, resulting in product damage or damage to the dispensing needle. Therefore, a floating dispensing needle has been invented in the prior art.

[0004] For the existing floating dispensing needle, generally, the upper end of the set dispensing needle is sleeved and fixed outside the lower part of the set dispensing head so as to be movable up and down, and a floating spring is provided to provide floating, and a sealing ring is used to seal the sleeved gap between them. When the used dispensing needle floats up and down relative to the used dispensing head, a large friction will be generated between its inner wall and the outer wall of the used dispensing head, so that both of them are easily damaged, resulting in a short service life for both.

[0005] In view of this, the inventor of this patent, based on work experience, through in-depth thinking about the problems encountered in work, referring to a large number of scientific research materials and literature, and through retrieval and novelty search, gradually conceived and designed this application to solve the related technical problems. Content of the Utility Model

[0006] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, the purpose of the utility model is to provide a high-life needle floating dispensing mechanism.

[0007] To achieve one of the above purposes, according to an embodiment of the utility model, a high-life needle floating dispensing mechanism includes a fixing frame, a glue inlet pipe, a dispensing head, a floating spring, and a dispensing needle;

[0008] A through hole is formed in the fixing frame through its upper and lower end faces, and an annular groove is cut upward around the through hole on the lower bottom surface of the fixing frame; the lower end of the glue inlet pipe has a supporting surface in contact with the upper end surface of the fixing frame, and a glue discharge hole communicating with its interior is formed in the middle of the supporting surface;

[0009] The upper part of the dispensing head can be moved up and down and passed through the sleeve hole, and its upper end extends upward from the sleeve hole and is inserted into the glue discharge hole. The middle part is provided with an annular convexity with a certain floating gap between it and the lower bottom surface of the fixing frame; the floating spring is clamped in the annular groove in a compressed state, and its lower end is abutted against the upper end surface of the annular convexity; the upper end of the dispensing needle is detachably connected to the lower part of the dispensing head.

[0010] In addition, the long-life needle floating dispensing mechanism according to the above embodiment of the utility model may also have the following additional technical features:

[0011] According to one embodiment of the utility model, it also includes a ball bushing;

[0012] The ball bushing is sleeved outside the upper part of the dispensing head in an interference fit and is limited in the sleeve hole in an interference fit.

[0013] According to an embodiment of the utility model, the ball bushing includes a sleeve and a plurality of balls;

[0014] The sleeve is sleeved outside the upper part of the dispensing head and is limited in the sleeve hole, and the sleeve is evenly provided with a plurality of holes penetrating the inner and outer walls thereof from top to bottom, and a ball is rotatably mounted in each of the holes; the outer diameters of the plurality of balls are equal to the distance between the inner wall of the sleeve hole and the outer wall of the upper part of the dispensing head.

[0015] According to an embodiment of the utility model, the clamping holes are evenly arranged in multiple circles from top to bottom, and each circle has multiple clamping holes.

[0016] According to an embodiment of the utility model, a guide block is protruding downwardly from the lower bottom surface of the fixing frame, and the guide block has a vertical guide surface that fits with the annular outer convex side wall.

[0017] According to one embodiment of the utility model, it also includes a fixing nut;

[0018] The lower end of the fixing nut is threadedly connected to the outside of the upper end of the rubber inlet pipe. An annular groove A is cut in the upper inner part of the fixing nut, and a sealing ring A is clamped in the annular groove A.

[0019] According to an embodiment of the utility model, a detachable sleeve at the upper end of the dispensing needle is fixed outside the lower part of the dispensing head.

[0020] According to an embodiment of the utility model, an annular groove B is cut in the outer wall of the lower end of the dispensing head, and a sealing ring B is clamped in the annular groove B, the outer surface of which is tightly against the outer wall of the upper end of the dispensing needle.

[0021] According to an embodiment of the present utility model, the upper end of the dispensing needle is threadedly connected to the lower part of the dispensing head.

[0022] The beneficial effects of the present utility model are as follows:

[0023] First, when the surface of the product is uneven and has a dispensing part with an upward bulge, through further compression of the floating spring for pressure relief, it is ensured that the lower end of the dispensing needle will not hard press down and damage the upward-bulging dispensing part on the surface of the product. As a result, the present application has strong adaptability and flexibility in use. At the same time, it also makes the lower end of the dispensing needle not easily damaged by hard pressing, and the upward-bulging dispensing part on the product surface is not easily damaged either. And compared with the floating dispensing needle of the structure in the background art, the upper end of the dispensing needle in the present application is detachably connected to the lower part of the dispensing head. There is no floating spring to be used between them. Instead, the floating spring is arranged between the lower bottom surface of the fixed frame and the upper end surface of the annular convex, and the lifting limit is carried out through the annular card slot. In this way, when the present application is specifically used, under the elastic force of the floating spring, it drives the whole composed of the glue inlet pipe, the dispensing head and the dispensing needle to float up and down for dispensing. For the above-mentioned related improvement methods, it can make the dispensing needle have a long service life and be more stable and reliable in use.

[0024] Second, by setting the ball bushing for isolation protection and reducing friction, the sliding friction between the outer wall of the upper part of the dispensing head and the inner wall of the sleeve hole is small, so that the dispensing head is also not easily damaged and has a long service life.

[0025] Third, when the ball bushing includes a sleeve with multiple card holes and multiple balls of the outer diameter, when the dispensing head slides up and down in the sleeve hole, it can drive multiple balls to rotate in multiple card holes in all directions, so as to reduce the friction between the outer wall of the upper part of the dispensing head and the inner wall of the sleeve, and reduce the friction between the outer wall of the sleeve and the inner wall of the sleeve hole. This makes the fixed frame, the ball bushing and the dispensing head all have good wear resistance, so that they all have a long service life.

[0026] Fourth, by setting the ball bushing in the present application, it can also play a good role in guiding up and down and positioning, so that the dispensing needle can stably float only in the up and down direction and is not easily displaced circumferentially, making the present application more reliable in actual use.

[0027] Fifthly, by providing the guiding block and designing the vertical guiding surface, the present application can play a better role in guiding in the vertical direction, so that when the dispensing head moves upward in the vertical direction, it is not easy to deviate circumferentially. Moreover, by providing the vertical guiding surface for blocking, it can also better prevent the dispensing head from rotating circumferentially, so that when its upper end is inserted and fixed into the glue discharging hole, it is not easy to fall off due to rotation.

[0028] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] To more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0030] Figure 1 is the overall structural schematic diagram of the high-life needle floating dispensing mechanism of the present utility model Figure 1 ;

[0031] Figure 2 is the decomposition of the high-life needle floating dispensing mechanism of the present utility model Figure 1 ;

[0032] Figure 3 is the overall structural schematic diagram of the high-life needle floating dispensing mechanism of the present utility model Figure 2 ;

[0033] Figure 4 is the decomposition of the high-life needle floating dispensing mechanism of the present utility model Figure 2 ;

[0034] Figure 5 is the longitudinal sectional view of the high-life needle floating dispensing mechanism of the present utility model;

[0035] Reference numerals:

[0036] High-life needle floating dispensing mechanism 1000;

[0037] Fixed frame 10;

[0038] Socket hole 101;

[0039] Annular clamping groove 102;

[0040] Guiding block 103;

[0041] Vertical guiding surface 1031;

[0042] Fixed mounting hole 104;

[0043] Glue inlet tube 20;

[0044] Supporting surface 201;

[0045] Glue discharge hole 202;

[0046] Dispensing head 30;

[0047] Annular convex 301;

[0048] Sealing ring B 302;

[0049] Floating spring 40;

[0050] Ball bushing 50;

[0051] Casing 501;

[0052] Clamping hole 5011;

[0053] Ball 502;

[0054] Fixed nut 60;

[0055] Sealing ring A 601;

[0056] Dispensing needle 70;

[0057] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0058] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings of the specification, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0059] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. is based on the orientation or positional relationship shown in the accompanying drawings of the specification. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0060] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically and clearly defined.

[0061] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0062] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0063] The high-life needle floating dispensing mechanism 1000 of the embodiment of the present utility model will be described in detail below with reference to the accompanying drawings.

[0064] Refer to Figures 1 to 5 As shown, the high-life needle floating dispensing mechanism 1000 provided by the embodiment of the present utility model includes a fixed frame 10, a glue inlet pipe 20, a dispensing head 30, a floating spring 40, and a dispensing needle 70.

[0065] Among them, a sleeve hole 101 penetrating the upper and lower end faces is formed in the fixing bracket 10, and an annular clamping groove 102 is cut upward around the sleeve hole 101 on the lower bottom surface of the fixing bracket 10; the lower end of the glue inlet pipe 20 has a supporting surface 201 in contact with the upper end surface of the fixing bracket 10, and a glue discharging hole 202 communicating with its interior is formed in the middle of the supporting surface 201;

[0066] Moreover, the upper part of the dispensing head 30 is movably inserted up and down through the sleeve hole 101, its upper end extends upward out of the sleeve hole 101 and is inserted and fixed into the glue discharging hole 202, and an annular outer protrusion 301 with a certain floating gap from the lower bottom surface of the fixing bracket 10 is arranged outward in the middle thereof; the floating spring 40 is clamped in the annular clamping groove 102 in a compressed state, and its lower end abuts against the upper end surface of the annular outer protrusion 301; the upper end of the dispensing needle 70 is detachably connected to the lower part of the dispensing head 30.

[0067] Based on the above, it can be clear that when this application is specifically implemented, it is mainly used as a high-life needle floating dispensing mechanism 1000.

[0068] Specifically, when applying this application, assemble this application according to the above structure, fix the fixing bracket 10 to the dispensing mechanism to be used, and then the dispensing needle 70 of this application can be used to perform contact dispensing or close-range dispensing on the product surface.

[0069] Obviously, for the use of the above application, it will have the following technical effects:

[0070] On the one hand, when the product surface is uneven and has a dispensing part with an upward protrusion, through the further compression of the floating spring 40 for pressure relief, the lower end of the dispensing needle 70 will not hard press down and damage the corresponding upward-protruding dispensing part on the product surface, so that the application has strong adaptability and flexibility in use. At the same time, the lower end of the dispensing needle 70 is not easily damaged by hard pressing, and the upward-protruding dispensing part on the product surface is not easily damaged either.

[0071] On the other hand, compared with the floating dispensing needle 70 of the structure described in the background art, the upper end of the dispensing needle 70 in the present application is detachably connected to the lower part of the dispensing head 30. Instead of arranging the floating spring 40 to be used between them, the floating spring 40 is arranged between the lower bottom surface of the fixed frame 10 and the upper end surface of the annular convex 301, and the lifting limit is carried out through the arranged annular card slot 102. In this way, when the present application is specifically used, under the elastic force of the floating spring 40, the whole formed by the glue inlet pipe 20, the dispensing head 30 and the dispensing needle 70 is driven to float up and down for dispensing. For related improvement methods, the service life of the dispensing needle 70 can be long, and it is more stable and reliable to use.

[0072] Furthermore, through the above optimized design, the whole formed by the present application has strong practicability and good use effect.

[0073] Further, in specific implementation, referring to Figure 2 、 Figure 4 and Figure 5 shown, according to an embodiment of the present invention, the present application further includes a ball bushing 50;

[0074] Wherein, the ball bushing 50 is sleeved on the upper part of the dispensing head 30 by interference fit and is limited in the sleeve hole 101 by interference fit.

[0075] Thus, by arranging the ball bushing 50 for isolation protection and reducing friction, the sliding friction force between the outer wall of the upper part of the dispensing head 30 and the inner wall of the sleeve hole 101 is small, so that the dispensing head 30 is also not easily damaged and has a long service life.

[0076] Preferably, in this technical solution, continuing to refer to Figure 2 、 Figure 4 and Figure 5 shown, according to an embodiment of the present invention, the ball bushing 50 includes a sleeve 501 and multiple balls 502;

[0077] Wherein, the sleeve 501 is sleeved on the upper part of the dispensing head 30 and is limited in the sleeve hole 101, and a plurality of through holes 5011 penetrating its inner and outer walls are uniformly opened on the sleeve 501 from top to bottom. Each of the through holes 5011 is rotatably provided with one of the balls 502; the outer diameters of the multiple balls 502 are all equal to the distance between the inner wall of the sleeve hole 101 and the outer wall of the upper part of the dispensing head 30.

[0078] Thus, in the present application, when the ball bushing 50 includes the sleeve 501 with the structure and multiple balls 502, during the process of the dispensing head 30 sliding up and down in the sleeve hole 101, multiple balls 502 can be driven to rotate in all directions, thereby reducing the friction between the outer wall of the upper part of the dispensing head 30 and the inner wall of the sleeve 501, and reducing the friction between the outer wall of the sleeve 501 and the inner wall of the sleeve hole 101, so that the fixing bracket 10, the ball bushing 50 and the dispensing head 30 all have good wear resistance and long service life.

[0079] At the same time, by providing the ball bushing 50, it also enables better up-and-down guiding and positioning functions, so that the dispensing needle 70 can float stably only in the up-and-down direction and is not prone to circumferential displacement, making the present application more reliable in actual use.

[0080] Moreover, in the present application, according to an embodiment of the present invention, multiple circles of card holes 5011 are evenly arranged in a ring from top to bottom, and each circle of card holes 5011 is provided with multiple.

[0081] In this way, when multiple circles of card holes 5011 are provided, multiple are provided in each circle, and each ball 502 is rotatably installed in each card hole 5011 respectively, the overall use effect of the ball bushing 50 in the present application is better.

[0082] Furthermore, in specific implementation, with reference to Figure 3 and Figure 4 shown, according to an embodiment of the present invention, a guiding block 103 protrudes downward from the bottom surface of the fixing bracket 10, and the guiding block 103 has a vertical guiding surface 1031 that fits against the side wall of the annular protrusion 301. Initially, the vertical guiding surface 1031 fits against the side wall of the annular protrusion 301. When using the present application, when the floating spring 40 is further compressed and the dispensing head 30 moves upward in the vertical direction, the side wall of the annular protrusion 301 will continue to fit against the vertical guiding surface 1031 and move upward.

[0083] Obviously, by providing the guiding block 103 and designing the vertical guiding surface 1031 in the present application, on the one hand, it can play a good role in guiding in the vertical direction, so that the dispensing head 30 is not prone to circumferential deviation when moving upward in the vertical direction. On the other hand, by providing the vertical guiding surface 1031 for blocking, it can also better prevent the dispensing head 30 from rotating circumferentially, so that when its upper end is inserted and fixed into the glue discharging hole 202, it is not prone to falling off due to rotation.

[0084] Furthermore, through the above optimized design, the overall use effect of the present application can be effectively improved.

[0085] In addition, in specific implementation, referring to Figure 2 , Figure 4 and Figure 5 , according to an embodiment of the present utility model, the present application further includes a fixing nut 60;

[0086] Wherein, the lower end of the fixing nut 60 is threadedly connected to the outer side of the upper end of the glue inlet pipe 20, and an annular groove A is circumferentially cut on the upper part inside the fixing nut 60, and a sealing ring A601 is clamped in the annular groove A.

[0087] Thus, by providing the fixing nut 60, sleeving and fixing it outside the lower glue discharging port of the glue bucket to be used, and sealing through the provided sealing ring A601, it is ensured that the connection between the upper end of the glue inlet pipe 20 and the lower glue discharging port of the glue bucket to be used is not prone to leaking glue outward.

[0088] Furthermore, in specific implementation, according to an embodiment of the present utility model, the upper end of the dispensing needle 70 is detachably sleeved and fixed outside the lower part of the dispensing head 30.

[0089] Preferably, in this technical solution, referring to Figure 2 , Figure 4 and Figure 5 , according to an embodiment of the present utility model, an annular groove B is circumferentially cut on the outer wall of the lower end of the dispensing head 30, and a sealing ring B302 with an outer surface closely abutted against the outer wall of the upper end of the dispensing needle 70 is clamped in the annular groove B.

[0090] Thus, by providing the sealing ring B302, it is ensured that the connection between the lower end of the dispensing head 30 and the upper end of the dispensing needle 70 is not prone to leaking glue outward.

[0091] Moreover, in specific implementation, according to an embodiment of the present utility model, the upper end of the dispensing needle 70 and the lower part of the dispensing head 30 are preferably threadedly connected.

[0092] In this way, adopting the threaded connection method facilitates the stable fixation and easy disassembly of the dispensing needle 70.

[0093] It should be added that, in specific implementation, referring to Figure 1 and Figure 3 , according to the high - life needle floating type dispensing mechanism 1000 provided by the embodiment of the present utility model, the fixing frame 10 is formed in an L shape, and a sleeve hole 101 is provided at the lower end thereof to floatingly sleeve and fix the dispensing head 30 and the ball bushing 50, and a fixed mounting hole 104 is provided at the upper end thereof to facilitate fixing it to the dispensing mechanism to be used with fastening bolts or the like.

[0094] Other embodiments and the like are not illustrated herein by way of example.

[0095] In summary, for the high - life needle floating dispensing mechanism 1000 provided by the present application, in specific implementation, on the one hand, when the surface of the product is uneven and has a dispensing part with an upward bulge, the floating spring 40 is further compressed for pressure relief, so that the lower end of the dispensing needle 70 will not hard - press and damage the corresponding upward - bulging dispensing part on the product surface. As a result, the present application has strong adaptability and flexibility in use. At the same time, it also makes the lower end of the dispensing needle 70 not easily damaged by hard pressing, and the upward - bulging dispensing part on the product surface is not easily damaged. On the other hand, compared with the floating dispensing needle 70 of the structure in the background art, the upper end of the dispensing needle 70 in the present application is detachably connected to the lower part of the dispensing head 30. There is no floating spring 40 to be used between them. Instead, the floating spring 40 is arranged between the lower bottom surface of the fixed frame 10 and the upper end surface of the annular protrusion 301, and the lifting limit is carried out through the provided annular slot 102. In this way, when the present application is specifically used, under the elastic force of the floating spring 40, the whole formed by the glue inlet pipe 20, the dispensing head 30 and the dispensing needle 70 is driven to float up and down for dispensing. For the related improvement methods, the service life of the dispensing needle 70 can be long, and it is more stable and reliable to use.

[0096] Moreover, by setting the ball bushing 50 for isolation protection and friction reduction, the sliding friction between the outer wall of the upper part of the dispensing head 30 and the inner wall of the sleeve hole 101 is small, so that the dispensing head 30 is also not easily damaged and has a long service life.

[0097] When the ball bushing 50 includes the sleeve 501 and multiple balls 502 of such a structure, even when the dispensing head 30 slides up and down in the sleeve hole 101, it can drive the multiple balls 502 to rotate in all directions, thereby reducing the friction between the outer wall of the upper part of the dispensing head 30 and the inner wall of the sleeve 501, and reducing the friction between the outer wall of the sleeve 501 and the inner wall of the sleeve hole 101. This makes the fixed frame 10, the ball bushing 50 and the dispensing head 30 all have good wear resistance, so that their service lives are all long.

[0098] At the same time, by setting the ball bushing 50, it also plays a good role in up - down guiding and positioning, so that the dispensing needle 70 can stably float only in the up - down direction and is not easily displaced circumferentially. When the present application is actually used, the use reliability is higher.

[0099] Furthermore, by providing the guiding block 103 and designing the vertical guiding surface 1031 thereon, on the one hand, it can play a good role in guiding in the vertical direction, so that the dispensing head 30 is not easily deviated circumferentially when moving upward in the vertical direction. On the other hand, by providing the vertical guiding surface 1031 for blocking, it can also better prevent the dispensing head 30 from rotating circumferentially, so that when its upper end is inserted and fixed into the glue discharging hole 202, it is not easily detached due to rotation.

[0100] Furthermore, the high-life needle floating type dispensing mechanism 1000 provided by the present application is indeed extremely practical and has excellent use effects, making it inevitable that the present application will have good market promotion value and will also be very popular and can be effectively popularized.

[0101] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0102] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the description of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A high-life needle floating dispensing mechanism, characterized in that, It includes a fixing bracket, a glue inlet pipe, a dispensing head, a floating spring and a dispensing needle; A sleeve hole penetrating the upper and lower end faces of the fixing bracket is formed on the fixing bracket, and an annular clamping groove is cut upward around the sleeve hole on the lower bottom surface of the fixing bracket; The lower end of the glue inlet pipe has a supporting surface in contact with the upper end surface of the fixing bracket, and a glue discharging hole is formed in the middle of the supporting surface; The upper part of the dispensing head is movably inserted into the sleeve hole up and down, its upper end extends upward out of the sleeve hole and is inserted and fixed into the glue discharging hole, and an annular outer protrusion with a certain floating gap is arranged between the middle part of the dispensing head and the lower bottom surface of the fixing bracket; The floating spring is clamped in the annular clamping groove in a compressed state, and its lower end abuts against the upper end surface of the annular outer protrusion; The upper end of the dispensing needle is detachably connected to the lower part of the dispensing head.

2. The high-life needle floating dispensing mechanism according to claim 1, characterized in that, It also includes a ball bushing; The ball bushing is sleeved on the outer part of the upper part of the dispensing head by interference fit and is limited in the sleeve hole by interference fit.

3. The high-life needle floating dispensing mechanism according to claim 2, wherein The ball bushing includes a sleeve and multiple balls; The sleeve is sleeved on the outer part of the upper part of the dispensing head and is limited in the sleeve hole, and a plurality of through holes penetrating its inner and outer walls are uniformly formed on the sleeve from top to bottom, and a ball is rotatably clamped in each through hole respectively; The outer diameters of the multiple balls are all equal to the distance between the inner wall of the sleeve hole and the outer wall of the upper part of the dispensing head.

4. The high-life needle floating dispensing mechanism according to claim 3, wherein The through holes are uniformly arranged in multiple circles from top to bottom, and each circle of through holes is provided with a plurality of them.

5. The high-life needle floating dispensing mechanism according to claim 1, characterized in that, A guiding block protrudes downward from the lower bottom surface of the fixing bracket, and the guiding block has a vertical guiding surface that fits with the side wall of the annular outer protrusion.

6. The high-life needle floating dispensing mechanism according to claim 1, wherein It also includes a fixing nut; The lower end of the fixing nut is threadedly connected to the outer part of the upper end of the glue inlet pipe. An annular groove A is cut in the upper part of the fixing nut, and a sealing ring A is clamped in the annular groove A.

7. The high-life needle floating dispensing mechanism according to claim 1, characterized in that The upper end of the dispensing needle is detachably sleeved and fixed on the outer part of the lower part of the dispensing head.

8. The high-life needle floating dispensing mechanism according to claim 7, characterized in that, An annular groove B is cut in the outer wall of the lower end of the dispensing head, and a sealing ring B with an outer surface tightly abutted against the outer wall of the upper end of the dispensing needle is clamped in the annular groove B.

9. The high-life needle floating dispensing mechanism according to claim 8, characterized in that, The upper end of the dispensing needle is threadedly connected to the lower part of the dispensing head.

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