CN111842029A

CN111842029A - Dispensing needle head assembly and dispensing device

Info

Publication number: CN111842029A
Application number: CN202010803747.6A
Authority: CN
Inventors: 刘明清; 田亮; 钟辉; 高才峰; 刘康亮; 王艳波; 邢孔苏; 谢志远; 何海亮
Original assignee: Shenzhen Hymson Laser Intelligent Equipment Co Ltd
Current assignee: Shenzhen Hymson Laser Intelligent Equipment Co Ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2020-10-30

Abstract

The invention discloses a dispensing needle assembly and a dispensing device, wherein the dispensing needle assembly can be installed on the dispensing device and comprises: the glue dispensing device comprises a first base, a second base and a glue dispensing device, wherein the first base is used for being mounted on the glue dispensing device and is provided with a through first glue pipeline, the first glue pipeline is provided with a large-diameter part and a small-diameter part, and the large-diameter part is connected with the small-diameter part; a needle tube having a needle tube sliding portion, the needle tube sliding portion being partially accommodated in the small diameter portion, and the needle tube sliding portion being free to slide in the small diameter portion; a sealing part accommodated in the large diameter part, and sealing a gap between the needle tube sliding part and the small diameter part after the needle tube sliding part is accommodated in the small diameter part; a fastening portion configured to fasten the needle tube to the first base. According to the dispensing needle assembly, the needle tube is freely installed on the first base in a sliding mode and is fastened to the first base through the fastening portion, so that the needle tube can be conveniently replaced, and the installation height of the needle tube can be conveniently corrected.

Description

Dispensing needle head assembly and dispensing device

Technical Field

The invention relates to the technical field of dispensing, in particular to a dispensing needle head assembly and a dispensing device.

Background

In the dispenser, the needle is a consumable and needs to be replaced periodically, and in addition, according to different dispensing profiles, dispensing needles of different specifications also need to be replaced. The dispensing needle head components on the existing dispensing machine are various, for example, a needle head integrally formed by plastic, a needle head integrally processed by stainless steel and the like are used. Because the sizes of the known integrated pinheads are different, after the integrated pinheads are installed on a dispensing device, the height between the pinheads and products needing dispensing is easy to change, and therefore, the dispensing pinhead assembly is often required to be integrally corrected after the integrated pinheads are installed.

Disclosure of Invention

The invention provides a dispensing needle assembly for solving at least one of the problems in the prior art to a certain extent, which can reduce the correction difficulty after the dispensing needle assembly is installed on a dispensing device.

A dispensing needle assembly according to an embodiment of the first aspect of the invention mountable to a dispensing device, comprising: the glue dispensing device comprises a first base, a second base and a glue dispensing device, wherein the first base is used for being mounted on the glue dispensing device and is provided with a through first glue pipeline, the first glue pipeline is provided with a large diameter part and a small diameter part, and the large diameter part is connected with the small diameter part; a needle tube having a needle tube sliding portion which is partially housed in the small diameter portion and in which the needle tube sliding portion is slidable; a sealing part which is accommodated in the large diameter part and seals a gap between the needle tube sliding part and the small diameter part after the needle tube sliding part is accommodated in the small diameter part; a fastening portion configured to fasten the needle tube to the first base.

According to some glue syringe needle subassemblies of this embodiment, have following beneficial effect at least: since the needle tube is slidably mounted to the first base and fastened to the first base by the fastening portion, not only can the needle tube be easily replaced, but also the mounting height of the needle tube can be easily corrected.

In some embodiments, the inner tube of the needle cannula has a cross-sectional shape that is circular, elliptical, D-shaped, triangular, or square.

In some embodiments, the seal comprises a sealing ring that is fitted over the outer circumference of the needle cannula.

In some embodiments, the sealing portion further comprises a compression ring, and one axial end of the compression ring abuts against and presses the sealing ring so that the sealing ring is attached to the outer periphery of the needle tube.

In some embodiments, the first base is provided with a first threaded hole penetrating through a side wall thereof, and the first threaded hole is communicated with the small-diameter part; the fastening part comprises a first threaded piece, and the first threaded piece is in threaded connection with the first threaded hole and tightly props up the needle tube.

In some embodiments, a first groove portion is formed in a tube wall portion of the glue outlet end of the needle tube, and the first groove portion penetrates through the tube wall portion along a radial direction of the needle tube.

The glue dispensing device according to the embodiment of the second aspect of the invention comprises: a first driving unit linearly driven in the X-axis direction; a second base mounted to the first driving part and driven by the first driving part to linearly move; the dispensing needle assembly of any one of the above, mounted to the second base by the first base; the glue storage part is communicated with the first glue pipeline.

The dispensing device according to the embodiment has at least the following beneficial effects: because the needle tube of the dispensing needle assembly is freely installed on the first base in a sliding manner and is fastened to the first base through the fastening part, the dispensing device of the embodiment not only can conveniently replace the needle tube, but also can conveniently correct the installation height of the needle tube.

In some embodiments, further comprising: and a second driving part linearly driven in the Y-axis direction, the first driving part being mounted to the second driving part.

In some embodiments, the dispensing device further comprises a rotary drive part mounted to the second base and configured to drive the dispensing needle assembly to rotate.

In some embodiments, the glue dispenser further comprises a shaft-like rotating member, wherein the rotating member is mounted on the second base and rotated by the rotating driving part, and the rotating member is provided with a second glue pipeline passing through the rotating member in the axial direction;

the first base is mounted to the rotary member, and the first glue line is in communication with the glue reservoir through the second glue line.

Drawings

Fig. 1 is a perspective view of an embodiment of a dispensing needle assembly according to an embodiment of the first aspect of the present invention.

Fig. 2 is a sectional view at a-a in fig. 1.

Fig. 3 is a front view of another embodiment of a dispensing needle assembly in accordance with an embodiment of the first aspect of the present invention.

Fig. 4 is a sectional view at B-B in fig. 3.

FIG. 5 is a cross-sectional view taken at C-C in FIG. 3, showing the inner tube of the needle cannula having a triangular shape.

FIG. 6 is a cross-sectional view taken at C-C in FIG. 3, showing the inner tube of the syringe in a D-shape.

Fig. 7 is a perspective view of an embodiment of a dispensing device according to an embodiment of the second aspect of the invention.

Fig. 8 is a side view of the dispensing apparatus of fig. 7, showing a partial cross-sectional view at E-E of fig. 7.

Fig. 9 is a partially enlarged view at F in fig. 8.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the present invention can be implemented in many different ways and is not limited to the embodiments described herein, but rather these embodiments are provided to enable those skilled in the art to understand the disclosure more thoroughly.

In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" to another feature, it may be directly disposed, fixed, or connected to the other feature or may be indirectly disposed, fixed, connected, or mounted to the other feature. In the description of the embodiments of the present invention, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "greater than", "lower" or "inner" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

For convenience of description, the same or similar technical features in the embodiments are given the same reference numerals and are distinguished only when necessary.

Fig. 1 is a perspective view of an embodiment of a dispensing needle assembly 100, fig. 2 is a sectional view at a-a in fig. 1, fig. 3 is a front view of another embodiment of the dispensing needle assembly 100, fig. 4 is a sectional view at B-B in fig. 3, and referring to fig. 1 to 4, the dispensing needle assembly 100 according to the first aspect of the present invention may be mounted to a dispensing apparatus 200, including: a first base 101, a needle tube 102, a sealing part 103 and a fastening part 104 (not shown in fig. 1), wherein the first base 101 is used for being mounted to the glue dispensing device 200, the first base 101 is provided with a first glue pipeline 105 which penetrates through, the first glue pipeline 105 is provided with a large-diameter part 106 and a small-diameter part 107, and the large-diameter part 106 is connected with the small-diameter part 107; the needle tube 102 has a needle tube sliding part 108, the needle tube sliding part 108 is partially accommodated in the small diameter part 107, and the needle tube sliding part 108 is slidable in the small diameter part 107; the sealing part 103 is housed in the large diameter part 106, and seals a gap between the needle tube sliding part 108 and the small diameter part 107 after the needle tube sliding part 108 is housed in the small diameter part 107; the fastening portion 104 is provided to fasten the needle tube 102 to the first base 101.

In the present embodiment, since the needle tube 102 is slidably attached to the first base 101 and fastened to the first base 101 by the fastening portion 104, not only can the needle tube 102 be easily replaced, but also the mounting height of the needle tube 102 can be easily corrected.

Further, since the seal 103 for sealing the gap between the needle tube sliding portion 108 and the small diameter portion 107 is provided, it is possible to prevent the leakage of the glue between the large diameter portion 106 and the small diameter portion 107, and to ensure that the glue in the large diameter portion 106 is injected through the needle tube 102.

The shape of the first base 101 is not particularly limited, and may be, for example, a shaft shape, a block shape, a shaft shape having a chamfered edge, a stepped shaft shape, or other various shapes.

It is contemplated that the first base 101 is not particularly limited as long as it can be mounted to the dispensing device 200 and communicates the first glue line 105 with the glue reservoir 203 of the dispensing device 200, such as a glue cartridge, and may be mounted to the dispensing device 200 by, for example, screwing.

It is conceivable that "large diameter" and "small diameter" are merely illustrative of the relative size relationship of the two, that is, the radial dimension of the large diameter portion 106 is larger than that of the small diameter portion 107, and the specific dimension thereof is not limited. Although the "diameter" is used herein for explanation, the "diameter" should be understood in a broad sense, and the "diameter" refers only to the cross-sectional direction of the first glue line 105, and does not limit the shape of the cross-section, for example, the cross-sectional shape of the small diameter portion 107 may be various shapes such as a circle, an ellipse, a D-shape, a triangle, and a square. Further, the needle tube sliding portion 108 is provided in accordance with the shape of the cross section of the small diameter portion 107 so as to fit with the small diameter portion 107 and to be slidable within the small diameter portion 107.

It is contemplated that the shape and direction of the first glue line 105 are not particularly limited as long as it penetrates the first base 101, and for example, the first glue line 105 may penetrate in the axial direction of the first base 101. In addition, although the "shaft" is used for explanation in this specification, the "shaft" should be understood broadly, and does not limit the shape of the first glue line 105 or the first base 101.

FIG. 5 is a cross-sectional view taken at C-C of FIG. 3, showing the inner tube 109 of the needle cannula 102 in a triangular shape, FIG. 6 is a cross-sectional view taken at C-C of FIG. 3, showing the inner tube 109 of the needle cannula 102 in a D-shape, and referring to FIGS. 5 and 6, in some embodiments, the cross-sectional shape of the inner tube 109 of the needle cannula 102 may be circular (FIG. 2), oval, triangular (FIG. 5), D-shaped (FIG. 6), or square, as different products require different profiles to be covered by glue, and thus, glue may need to be dispensed onto the products and then drawn to different profiles, in order to prevent the appearance of these glue profiles from being enhanced. Specifically, when the glue requires such shapes as a circle, an ellipse, a D-shape, a triangle, a square, etc., by setting the cross-sectional shape of the inner tube 109 of the needle tube 102 to a matching shape in advance, it is ensured that the glue is already formed before reaching the product, the stability of the glue is improved, and the occurrence of a situation of excess glue when being drawn to a specific glue profile can be avoided.

Further, although the cross-sectional shape of the inner tube 109 of the needle tube 102 is set according to the contour shape covered with the glue, the shape of the outer periphery of the needle tube 102 is not particularly limited, and may be set to a shape substantially matching the cross-sectional shape of the inner tube 109, such as a circular shape, an oval shape, a D-shape, a triangular shape, or a square shape, or may be set to a circular shape or a square shape in a lump, and the corresponding cross-sectional shape of the inner tube 109 may be set only according to the contour shape covered with the glue.

The needle tube 102 is not limited to a shape in which it extends as long as it can stably discharge the glue, and the needle tube 102 may be, for example, a linear tube shape.

With continued reference to fig. 2 and 4, in some embodiments, in order for the sealing portion 103 to tightly seal the gap between the needle tube sliding portion 108 and the small diameter portion 107, the sealing portion 103 includes a sealing ring 110, and the sealing ring 110 is fitted over the outer periphery of the needle tube 102. Specifically, the seal ring 110 may be, for example, an O-ring, and the material of the seal ring 110 is not particularly limited as long as it can resist corrosion by glue, and may be, for example, a rubber seal ring.

In some embodiments, in order to reliably fit the sealing ring 110 on the outer circumference of the needle tube 102, and in particular, in order to reliably fit the sealing ring 110 on the needle tube sliding part 108 having a non-circular shape, such as an oval shape, a D shape, a triangular shape, or a square shape, the sealing part 103 further includes a pressing ring 111, and one axial end of the pressing ring 111 abuts against and presses the sealing ring 110 so that the sealing ring 110 abuts on the outer circumference of the needle tube 102. Specifically, when the compression ring 111 is pressed, the packing 110 is pressed and deformed so as to fit the shape of the outer periphery of the needle tube sliding portion 108, and thus can be tightly fitted over various non-circular needle tube sliding portions 108. Further, in order to deform the seal ring 110 toward the middle (i.e., toward the needle tube sliding portion 108), the clamp ring 111 is provided with a first inclined surface 112 inclined toward the radial inner side thereof, and the clamp ring 111 presses the seal ring 110 by the first inclined surface 112 to thereby deform the seal ring 110 toward the middle.

Note that the manner in which the pressing ring 111 presses the seal ring 110 is not particularly limited, and for example, the pressing ring 111 may be locked to the large diameter portion 106 of the first base 101 by locking, and thereby press the seal ring 110. Additionally, compression ring 111 may also be configured to be held against after mounting of dispensing needle assembly 100 to dispensing device 200, thereby compressing sealing ring 110.

Further, the inner ring 113 of the clamp ring 111 may be provided to match the outer shape of the needle tube sliding portion 108, whereby the needle tube 102 can be slid smoothly, and the mounting height of the needle tube 102 can be corrected easily.

In some embodiments, to facilitate the detachment and installation of the needle tube 102, the first base 101 is opened with a first threaded hole 114 penetrating through a sidewall thereof, and the first threaded hole 114 communicates with the small diameter portion 107; the fastening portion 104 includes a first screw member 115, and the first screw member 115 is screwed with the first screw hole 114 and abuts against the needle pipe 102. Specifically, the first screw 115 may be selected from a set screw, for example. Further, when the needle tube sliding portion 108 has, for example, a triangular shape or a D-shape, the first screw hole 114 is provided so as to face the flat surface 116 of the needle tube 102, and the first screw 115 pushes the needle tube 102 against the second inclined surface 117 (triangular shape, which is usable for positioning) or the curved surface 118 (D-shape, which is usable for positioning) which is inclined with respect to the flat surface 116 of the needle tube 102, so that the needle tube 102 can be fastened easily, the mounting accuracy of the needle tube 102 can be improved, and the concentricity of the mounting of the needle tube 102 can be improved.

With continued reference to fig. 1 and 2, in some embodiments, in order to further improve the accuracy (aesthetic property) of the contour covered by the glue, particularly the accuracy of the contour covered by the glue (for example, when the contour of the glue is in a ring shape or a curved shape), ensure that the contour covered by the glue at the corner is consistent with the contour of the other positions covered by the glue, and reduce the difficulty of glue dispensing at the corner, the wall portion 119 of the glue outlet end of the needle tube 102 is provided with a first groove portion 120, and the first groove portion 120 penetrates through the wall portion 119 along the radial direction of the needle tube 102. Specifically, the first groove portion 120 may be, for example, V-shaped, U-shaped, or the like, and may penetrate the tube wall portion 119 from a substantially middle portion in the radial direction of the needle tube 102, whereby the shape of the corner of the glue contour and the shapes of other positions are substantially matched, the precision of the contour covered with the glue is improved, and the glue contour can be formed into a shape in which the cross section gradually decreases from the surface of the product toward the direction away from the product.

Referring to fig. 4, the shape of the first groove portion 120 is not limited to this, and the first groove portion 120 may penetrate the tubular wall portion 119 of the needle tube 102 in the radial direction of the needle tube 102 at an angle of more than 0 ° and less than 90 ° from the radial direction of the needle tube 102, and in this case, the glue-discharging end of the needle tube 102 is inclined with respect to the axial direction of the needle tube 102 when viewed from the side of the needle tube 102.

Fig. 7 is a perspective view of an embodiment of the dispensing apparatus 200, fig. 8 is a side view of the dispensing apparatus 200, showing a partial cross-sectional view at E-E in fig. 7, and fig. 9 is a partial enlarged view at F in fig. 8. Referring to fig. 7 to 9, as mentioned above, the dispensing needle assembly 100 can be applied to a dispensing apparatus 200, and specifically, the dispensing apparatus 200 according to the second aspect of the present invention includes: a first driving part 201, a second base 202, a dispensing needle assembly 100 and a glue storage part 203, wherein the first driving part 201 drives linearly along the X-axis direction; the second base 202 is attached to the first driving unit 201, and is driven by the first driving unit 201 to move linearly; a dispensing needle assembly 100 mounted to a second base 202 through the first base 101; the glue reservoir 203 communicates with the first glue line 105.

In the present embodiment, since the needle tube 102 of the dispensing needle assembly 100 is slidably mounted on the first base 101 and is fastened to the first base 101 by the fastening portion 104, the dispensing apparatus 200 of the present embodiment not only can conveniently replace the needle tube 102, but also can conveniently correct the mounting height of the needle tube 102.

The type of the first driving unit 201 is not particularly limited as long as the dispensing tip assembly 100 can be driven in a linear direction, and may be, for example, a single-shaft robot (i.e., an electric slide table module) using a motor as driving power, a slide rail and a slider (not shown) as linear guides, and a screw assembly (not shown) as a transmission member. The second base 202 is mounted on a slider of the first driving part 201 and connected to the lead screw assembly, thereby being driven by the first driving part 201 to move linearly.

It is contemplated that the dispensing needle assembly 100 is not particularly limited as long as it can be mounted on the second base 202 and driven by the first driving portion 201 to dispense the product, and preferably, after the dispensing needle assembly 100 is mounted on the second base 202, the needle 102 discharges the glue in the Z-axis direction.

It is contemplated that glue reservoir 203 may include a container for storing glue, such as a glue cartridge, glue barrel, or the like. The glue reservoir 203 may be directly attached to the second base 202, or may be attached to another location, for example, a table (not shown) of a dispenser.

In some embodiments, in order to enable the dispensing apparatus 200 to dispense in multiple directions, the method further includes: a second driving unit 204, the second driving unit 204 linearly drives along the Y-axis direction, and the first driving unit 201 is mounted on the second driving unit 204. Specifically, the second driving unit 204 may also select the same driving element as the first driving unit 201, for example, a single-shaft robot having a motor as driving power. By attaching the first driving unit 201 to the second driving unit 204, a two-axis robot (driven in the X-axis direction and the Y-axis direction) is mounted. By providing the first driving unit 201 and the second driving unit 204, for example, dispensing of a circular or curved track can be easily performed.

In some embodiments, in order to make the contour of the glue coverage uniform, especially to make the contour of the glue coverage uniform when performing circular or curved trace dispensing, a rotary driving part 205 is further included, the rotary driving part 205 is mounted to the second base 202 and configured to drive the dispensing needle assembly 100 to rotate. Specifically, the cross-section of the inner tube 109 of the needle tube 102 is circular, and the first groove portion 120 penetrating the tube wall portion 119 of the needle tube 102 is opened from the substantially middle portion in the radial direction of the needle tube 102 at one end of the needle tube 102 from which the glue is discharged. In this embodiment, for example, in the initial state, the first groove portion 120 faces the X-axis direction, when the first driving portion 201 drives the needle tube 102 to move along the X-axis direction, the profile of the glue with a uniform cross section gradually decreasing along the Z-axis direction can be formed on the product along the X-axis direction, and when the second driving portion 204 continues to drive the needle tube 102 to move along the Y-axis direction, by providing the rotary driving portion 205, the needle tube 102 rotates to face the Y-axis direction so that the first groove portion 120 faces the Y-axis direction while moving along the Y-axis direction, and an arc transition can be formed at the boundary (corner) where the profile of the glue extends along the X-axis direction and the Y-axis direction. Further, by forming the first groove portion 120, it is also possible to realize a shape in which the cross section is gradually reduced in the Z-axis direction similarly to the contour covered with the glue formed at the boundary between the X-axis direction and the Y-axis direction. Thus, the shape of the corner of the glue contour can be substantially matched with the shapes of other positions, and the precision of the contour covered by the glue can be improved.

When the cross-sectional shape of the inner tube 109 of the needle tube 102 is circular, elliptical, D-shaped, triangular, or square, the control method of the rotation driving unit 205 is substantially the same as that described above, and will not be described here.

It is conceivable that the rotary drive section 205 is not particularly limited as long as it can drive the dispensing tip assembly 100, and for example, a combination of the servo motor 206 and the belt transfer mechanism 207 may be used to drive the dispensing tip assembly 100. In some embodiments, for example, further comprising a shaft-like rotating member 208, the rotating member 208 is mounted to the second base 202 and rotated by the rotating driving portion 205, and the rotating member 208 is provided with a second glue line 209 penetrating through an axial direction thereof; the first base 101 is mounted to a swivel 208 and the first glue line 105 communicates with the glue reservoir 203 via a second glue line 209.

Specifically, the glue storage portion 203 may be mounted on the second base 202, and further, a control valve 210, such as a ceramic rotary valve, for opening or closing the glue storage portion 203 is provided on the second base 202, one end of the control valve 210 is connected to a glue outlet of the glue storage portion 203, and the other end of the control valve 210 is connected to a switching joint 211. The rotary member 208 is supported to the second base 202 by a bearing housing 212, and one of timing belts of the belt transfer mechanism 207 is fitted over the rotary member 208 and the other is fitted over an output shaft of the servo motor 206. In addition, one end of the rotary member 208 is sealably inserted into the adapter 211, and the first base 101 of the dispensing tip assembly 100 is nested in the other end of the rotary member 208, whereby the first glue line 105 of the first base 101 communicates with the glue reservoir 203 through the second glue line 209 of the rotary member 208.

The various features described in the foregoing detailed description may be combined in any manner and, for the sake of unnecessary repetition, various combinations are not intended to be encompassed by the invention.

The above embodiments are merely illustrative of the technical solutions of the present invention and are not restrictive, and any modifications or equivalent substitutions which do not depart from the scope of the present invention should be included in the technical solutions of the present invention.

Claims

1. Some adhesive needle subassemblies can install some adhesive deposite devices, its characterized in that includes:

the glue dispensing device comprises a first base, a second base and a glue dispensing device, wherein the first base is used for being mounted on the glue dispensing device and is provided with a through first glue pipeline, the first glue pipeline is provided with a large diameter part and a small diameter part, and the large diameter part is connected with the small diameter part;

a needle tube having a needle tube sliding portion which is partially housed in the small diameter portion and in which the needle tube sliding portion is slidable;

a sealing part which is accommodated in the large diameter part and seals a gap between the needle tube sliding part and the small diameter part after the needle tube sliding part is accommodated in the small diameter part;

a fastening portion configured to fasten the needle tube to the first base.

2. The dispensing needle assembly of claim 1, wherein the inner tube of the needle cannula has a cross-sectional shape that is circular, elliptical, D-shaped, triangular, or square.

3. The dispensing needle assembly of claim 1 or 2, wherein the sealing portion comprises a sealing ring that is nested around the outer circumference of the needle tube.

4. The dispensing needle assembly of claim 3, wherein the sealing portion further comprises a compression ring, and an axial end of the compression ring abuts and presses against the sealing ring to cause the sealing ring to abut against the outer circumference of the needle tube.

5. The dispensing needle assembly of claim 1 or 2, wherein the first base defines a first threaded hole through a sidewall thereof, the first threaded hole communicating with the small diameter portion;

the fastening part comprises a first threaded piece, and the first threaded piece is in threaded connection with the first threaded hole and tightly props up the needle tube.

6. The dispensing needle assembly according to claim 1 or 2, wherein a first groove is formed in a wall portion of the needle tube at the glue dispensing end, and the first groove penetrates the wall portion of the needle tube in a radial direction of the needle tube.

7. Adhesive deposite device, its characterized in that includes:

a first driving unit linearly driven in the X-axis direction;

a second base mounted to the first driving part and driven by the first driving part to linearly move;

the dispensing needle assembly of any of claims 1-6, mounted to the second base by the first base;

the glue storage part is communicated with the first glue pipeline.

8. The dispensing apparatus of claim 7, further comprising:

and a second driving part linearly driven in the Y-axis direction, the first driving part being mounted to the second driving part.

9. The dispensing apparatus of claim 8, further comprising a rotary drive mounted to the second base configured to drive the dispensing needle assembly to rotate.

10. The dispensing apparatus according to claim 9, further comprising a shaft-like rotary member mounted to said second base and rotated by said rotary driving portion, said rotary member being provided with a second glue line extending axially therethrough;