Dispensing structure

Abstract

The invention provides a dispensing structure. The dispensing structure comprises a dispensing rod, an angle adjusting piece and a dispensing head. The dispensing rod is provided with a first end and a second end which deviate from each other, a first glue flowing channel penetrating through the first end and the second end is arranged in the dispensing rod and provided with a first channel inlet located in the first end, and the second end is provided with a first channel outlet; the angle adjusting part is assembled at the second end of the dispensing rod, a second glue flowing channel is formed in the angle adjusting part and provided with a second channel inlet and a second channel outlet in the length direction of the angle adjusting part, and the second channel inlet is communicated with the first channel outlet; the dispensing head is assembled at the outlet of the second channel of the angle adjusting part, at least comprises a first dispensing hole and a second dispensing hole, and has at least different first and second dispensing positions, a connecting line of the first dispensing hole and the second dispensing hole at the first dispensing position, and a connecting line of the first dispensing hole and the second dispensing hole at the second dispensing position; and an included angle which is not zero is formed between the two connecting lines.

Description

Technical Field

[0001] The present application relates to the field of semiconductor technology, and in particular to a dispensing structure. Background Art

[0002] In the semiconductor packaging industry, it is usually necessary to glue and fix different components through glue dispensing structures, such as bonding chips to base islands, etc. The glue dispensing structure used in related technologies generally has a single glue dispensing hole. For products with large sizes or more glue dispensing locations that require more glue, multiple glue dispensing processes are required to complete a product, which affects the glue dispensing efficiency. Summary of the invention

[0003] The present application embodiment provides a dispensing structure, which includes:

[0004] A glue dispensing rod having a first end and a second end which are opposite to each other, wherein the glue dispensing rod has a first glue flow channel which passes through the first end and the second end, wherein the first glue flow channel has a first channel inlet located at the first end, and the second end has a first channel outlet;

[0005] An angle adjustment member is assembled at the second end of the dispensing rod, wherein the angle adjustment member has a second glue flow channel, wherein the second glue flow channel has a second channel inlet and a second channel outlet along the length direction of the angle adjustment member, and the second channel inlet is connected to the first channel outlet;

[0006] A glue dispensing head is assembled at the outlet of the second channel of the angle adjustment member, and the glue dispensing head has at least two glue dispensing holes; the at least two glue dispensing holes include a first glue dispensing hole and a second glue dispensing hole;

[0007] In which, the angle adjustment part has at least different installation positions, so that the at least two glue dispensing holes have at least two different first glue dispensing positions and second glue dispensing positions. In the first glue dispensing position, the line connecting the first glue dispensing hole and the second glue dispensing hole extends along the first direction. In the second glue dispensing position, the line connecting the first glue dispensing hole and the second glue dispensing hole extends along the second direction, and there is a non-zero angle between the first direction and the second direction.

[0008] In some embodiments, the second end of the dispensing rod is provided with a mounting portion extending outward from the dispensing rod;

[0009] The angle adjustment member comprises a channel shell for forming a second glue flow channel and a mounting matching portion located at the periphery of the channel shell, and the mounting matching portion is assembled with the mounting portion.

[0010] In some embodiments, the mounting portion is provided with mounting holes located on opposite sides of the dispensing rod;

[0011] The mounting fitting portion is provided with a plurality of fitting mounting holes arranged circumferentially along the outer periphery of the channel housing, and different fitting mounting holes are correspondingly connected to corresponding mounting holes through connecting members, so that the angle adjustment member is located at different mounting positions.

[0012] In some embodiments, the mounting portion is mounting ears located on opposite sides of the dispensing rod.

[0013] In some embodiments, the number of the mating mounting holes is an odd number.

[0014] In some embodiments, the mounting fitting portion is disposed in the middle of the channel housing, and the channel housing includes a first portion and a second portion located on opposite sides of the mounting fitting portion;

[0015] The second end of the dispensing rod is provided with a mounting slot matched with the first part, and the first part is clamped in the mounting slot;

[0016] The second part is provided with a dispensing head mounting structure, and the dispensing head mounting structure is a threaded structure.

[0017] In some embodiments, the glue dispensing rod includes a main body extending along the length direction and a bending portion connected to the main body, the first glue flow channel includes a first channel portion located in the main body and a second channel portion located in the bending portion, and the axis of at least part of the second channel portion has a non-zero angle with the axis of the first channel portion; the angle adjustment member is assembled on the side of the bending portion away from the main body.

[0018] In some embodiments, an angle between an axis of at least part of the second channel portion and an axis of the first channel portion is 45°-90°.

[0019] In some embodiments, the main body and the bending portion are integrally formed; or, the main body and the bending portion are detachably assembled together.

[0020] In some embodiments, the first end of the glue dispensing rod has a glue mounting structure;

[0021] The glue installation structure is an external thread on the periphery of the glue dispensing rod or an internal thread located at the entrance of the first channel.

[0022] In some embodiments, the outer wall of the dispensing rod is provided with a machine mounting portion;

[0023] At least a portion of the machine mounting portion is a flat mounting surface.

[0024] The main technical effects achieved by the embodiments of the present application are:

[0025] The above-mentioned dispensing structure provided in the embodiment of the present application is configured to have a dispensing head with at least two dispensing holes, and the dispensing head is assembled on the dispensing rod through an angle adjustment member, which can realize multi-hole dispensing, increase the amount of single dispensing, increase the coverage area of ​​single dispensing, improve dispensing efficiency, reduce downtime, increase output, and ensure quality and quantity; and can adapt to the dispensing of products with more different placement orientations by adjusting the dispensing position of the dispensing holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural schematic diagram of a dispensing structure provided by an exemplary embodiment of the present application;

[0027] Figure 2 is a bottom view of a dispensing head provided by an exemplary embodiment of the present application;

[0028] Figure 3 is an assembly stereogram of a dispensing rod and an angle adjustment member provided by an exemplary embodiment of the present application;

[0029] Figure 4 is an assembly side view of a dispensing rod and an angle adjustment member provided by an exemplary embodiment of the present application;

[0030] Figure 5 is an exploded view of a dispensing rod and an angle adjustment member provided by an exemplary embodiment of the present application;

[0031] Figure 6 is a three-dimensional diagram of an angle adjustment member provided by an exemplary embodiment of the present application;

[0032] Figure 7 is a side view of an angle adjustment member provided by an exemplary embodiment of the present application;

[0033] Figure 8 is a top view of an angle adjustment member provided by an exemplary embodiment of the present application;

[0034] Fig. 9 It is a side view of a main body of a dispensing rod provided by an exemplary embodiment of the present application from one perspective;

[0035] Fig.10 is a side view of a main body of a dispensing rod provided by an exemplary embodiment of the present application from another perspective;

[0036] Fig.11 is a top view of a bending portion of a dispensing rod provided by an exemplary embodiment of the present application;

[0037] Fig.12 It is a side view of a bending portion of a dispensing rod provided by an exemplary embodiment of the present application from one perspective;

[0038] Fig.13 It is a bottom view of a bending portion of a dispensing rod provided by an exemplary embodiment of the present application;

[0039] Fig.14 is a schematic diagram of a dispensing scenario provided by an exemplary embodiment of the present application;

[0040] Fig.15 It is a schematic diagram of a dispensing scenario provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0041] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0042] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0043] It should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0044] The present application provides a glue dispensing structure, which includes a glue dispensing rod, an angle adjustment member and a glue dispensing head. The dispensing rod has a first end and a second end which are opposite to each other, and a first glue flow channel which passes through the first end and the second end is provided in the dispensing rod, and the first glue flow channel has a first channel inlet located at the first end, and the second end has a first channel outlet; the angle adjustment member is assembled at the second end of the dispensing rod, and a second glue flow channel is provided in the angle adjustment member, and the second glue flow channel has a second channel inlet and a second channel outlet along the length direction of the angle adjustment member, and the second channel inlet is connected with the first channel outlet; the dispensing head is assembled at the second channel outlet of the angle adjustment member, and the dispensing head has at least two dispensing holes; the at least two dispensing holes include a first dispensing hole and a second dispensing hole; wherein the angle adjustment member has at least different installation positions, so that the at least two dispensing holes have at least two different first dispensing positions and second dispensing positions, and at the first dispensing position, the line connecting the first dispensing hole and the second dispensing hole extends along the first direction, and at the second dispensing position, the line connecting the first dispensing hole and the second dispensing hole extends along the second direction, and there is a non-zero angle between the first direction and the second direction. The above-mentioned dispensing structure sets the dispensing head to have at least two dispensing holes, and assembles the dispensing head on the dispensing rod through an angle adjustment part, which can realize multi-hole dispensing, increase the single dispensing amount, increase the single dispensing coverage area, improve the dispensing efficiency, reduce downtime, increase output, and ensure quality and quantity; and can adapt to the dispensing of products with different placement directions by adjusting the dispensing position of the dispensing hole.

[0045] The following is combined with Figures 1 to 15 , some embodiments of the dispensing structure described in this application are described in detail.

[0046] Please refer to Figure 1 as shown, and if necessary, combined Figures 2 to 15 As shown, the glue dispensing structure 100 includes a glue dispensing rod 10 , an angle adjustment member 20 and a glue dispensing head 30 .

[0047] The dispensing rod 10 has a first end 1001 and a second end 1002 which are opposite to each other. The dispensing rod 10 has a first glue flow channel 101 which passes through the first end 1001 and the second end 1002. The first glue flow channel 101 has a first channel inlet 1011 located at the first end 1001, and the second end 1002 has a first channel outlet 1012.

[0048] The angle adjustment member 20 is assembled at the second end 1002 of the dispensing rod 10 , and has a second glue flow channel 201 therein. The second glue flow channel 201 has a second channel inlet 2001 and a second channel outlet 2002 along the length direction of the angle adjustment member 20 , and the second channel inlet 2001 is connected to the first channel outlet 1012 .

[0049] The glue dispensing head 30 is assembled at the second channel outlet 2002 of the angle adjustment member 20, and the glue dispensing head 30 has at least two glue dispensing holes. For example, Figure 2 As shown, the at least two dispensing holes include a first dispensing hole 301 and a second dispensing hole 302 .

[0050] The angle adjustment member 20 has at least different installation positions, so that the at least two glue dispensing holes have at least two different first glue dispensing positions and second glue dispensing positions. In the first glue dispensing position, the line connecting the first glue dispensing hole 301 and the second glue dispensing hole 302 extends along the first direction (for example, Fig.14 L1 as shown), when in the second dispensing position, the line connecting the first dispensing hole 301 and the second dispensing hole 302 extends along the second direction (for example Fig.15 As shown in L2), there is a non-zero angle between the first direction and the second direction.

[0051] The different installation positions mentioned here may be positions where the angle adjustment member 20 is rotated to different angles relative to the second end of the dispensing rod 10 .

[0052] For example, the plurality of dispensing holes include a first dispensing hole 301 and a second dispensing hole 302 that are opposite to each other. Fig.14 As shown, the first dispensing position can be Fig.14 When the first glue hole 301 and the second glue hole 302 are located at the first glue position, the connecting line L1 of the first glue hole 301 and the second glue hole 302 extends along the first direction. Fig.14 The product shown is glued, wherein the first glue hole 301 and the second glue hole 302 correspond to the glue point A and the glue point B of the semiconductor structure 200, respectively, that is, glue is dispensed on the glue point A and the glue point B respectively. The glue point A and the glue point B are arranged relatively spaced in the first direction. The semiconductor structure 200 includes a lead frame structure 210. The glue point A and the glue point B are two glue points on the lead frame structure 310, which are used to bond the chip 220 to the lead frame structure 210. Fig.14 It can be a schematic diagram of the chip 220 after mounting. For the sake of easy viewing, the glue point A and the glue point B are shown in the figure.

[0053] Please combine Fig.15As shown, the second dispensing position can be Fig.15 When the first glue hole 301 and the second glue hole 302 are located at the second glue position, the connecting line L2 of the first glue hole 301 and the second glue hole 302 extends along the second direction. Fig.15 The product shown is glued, wherein the first glue hole 301 and the second glue hole 302 correspond to the glue point C and the glue point D of the semiconductor structure 300, respectively, that is, glue is applied to the glue point C and the glue point D, respectively. The glue point C and the glue point D are relatively spaced apart in the second direction. The semiconductor structure 300 includes a lead frame structure 310. The glue point C and the glue point D are two glue points on the lead frame structure 310, which are used to bond the chip 320 to the lead frame structure 310. Fig.15 It can be a schematic diagram of the chip 320 after mounting. For the sake of easy viewing, the C glue point and the D glue point are shown in the figure.

[0054] It should be noted that Fig.14 and Fig.15 As shown, the overall arrangement direction of the product on the operating table remains unchanged (for example, the arrangement direction of the lead frame structure remains unchanged), the first direction where the A and B glue spots of the adhesive required to be set in the semiconductor structure 200 for bonding the chip 220 are located is relatively straight, and the second direction where the C and D glue spots of the adhesive required to be set in the semiconductor structure 300 for bonding the chip 320 are located is relatively inclined. It can be seen that by setting the angle adjustment member 20 at two different installation positions, the first glue spot hole 301 and the second glue spot hole 302 can be located at the first glue spot position to dispense glue to the A and B glue spots arranged at intervals along the first direction in different products. The first glue spot hole 301 and the second glue spot hole 302 can be located at the second glue spot position to dispense glue to the C and D glue spots arranged at intervals along the second direction in different products to meet different glue dispensing requirements.

[0055] It should also be noted that the dispensing structure described in this application can be applied to Fig.14 , as shown in Figure 15, the dispensing of chip mounting glue can also be used to dispensing adhesive for bonding copper sheets (clip) on the chip and the chip pad connection structure. The dispensing structure described in this application can be used for dispensing conductive glue, and can also be used for dispensing non-conductive glue.

[0056] The dispensing structure 100 is configured to have at least two dispensing holes in the dispensing head 30, and the dispensing head 30 is assembled on the dispensing rod 10 through the angle adjustment member 20, so as to realize multi-hole dispensing, increase the amount of single dispensing, increase the coverage area of ​​single dispensing, improve dispensing efficiency, reduce downtime, increase output, and ensure quality and quantity; and by adjusting the dispensing position of the dispensing hole, it is possible to adapt to the dispensing of products with different placement directions.

[0057] It is understandable that the angle adjustment member 20 can also have other specific installation positions, and accordingly, the at least two dispensing holes can also have other different dispensing positions. The dispensing head can also have other multiple dispensing holes, such as three, four, five or more. The number of dispensing holes can be set according to the specific conditions such as the product dispensing requirements and the size of the dispensing head. The angle adjustment member 20 can be set according to the specific arrangement of the dispensing positions on the product, so that at least two dispensing holes on the dispensing head are located in the direction and position matching the dispensing positions on the product.

[0058] It is understandable that the spacing size of the dispensing holes on the dispensing head can also be adapted to the specific arrangement of the dispensing positions on the product. For example, according to different products, multiple dispensing heads with different numbers of dispensing holes and different arrangements of the dispensing hole positions can be set. When dispensing, the corresponding dispensing head can be replaced according to the specific situation and the specific dispensing position can be set.

[0059] In some embodiments, the second end 1002 of the dispensing rod 10 is provided with a mounting portion 120 extending from the dispensing rod 10 .

[0060] The angle adjustment member 20 comprises a channel housing 21 forming a second glue flow channel 201 and an installation matching portion 22 located at the periphery of the channel housing 21 . The installation matching portion 22 is assembled with the installation portion 120 .

[0061] In some embodiments, the mounting portion 120 is provided with mounting holes 1201 , 1202 located on opposite sides of the dispensing rod 10 .

[0062] The mounting fitting portion 22 is provided with a plurality of fitting holes 202 arranged circumferentially along the outer periphery of the channel shell 21 , and different fitting holes 202 are connected to corresponding mounting holes 1201 , 1202 by connecting members, so that the angle adjustment member 20 is located at different mounting positions.

[0063] In some embodiments, the mounting portion 120 is a mounting ear located on opposite sides of the dispensing rod 10 , which has a simple structure and is easy to install.

[0064] In some embodiments, the number of the mating mounting holes 202 is an odd number, which facilitates the installation of the angle adjustment member 20 to different installation positions and the adjustment of different glue dispensing positions.

[0065] Of course, in some other embodiments, the number of the matching installation holes 202 may also be an even number. The specific number of the matching installation holes may be set according to specific circumstances.

[0066] In some embodiments, the mounting fitting portion 22 is disposed in the middle of the channel housing 21 , and the channel housing 21 includes a first portion 211 and a second portion 212 located at opposite sides of the mounting fitting portion 22 .

[0067] In some embodiments, the second end 1002 of the dispensing rod 10 is provided with a mounting slot 1220 that cooperates with the first portion 211 , and the first portion 211 is clamped in the mounting slot 1220 .

[0068] In some embodiments, the second portion 212 is provided with a mounting structure for the glue dispensing head 30 , and the mounting structure for the glue dispensing head 30 is a threaded structure.

[0069] It should be noted that, in some other embodiments, the mounting structure of the glue dispensing head may also be other structures that can be used to mount and fix the glue dispensing head.

[0070] In some embodiments, the dispensing rod 10 includes a main body 11 extending in the length direction and a bending portion 12 connected to the main body 11, the first glue flow channel 101 includes a first channel portion 1013 located in the main body 11 and a second channel portion 1014 located in the bending portion 12, and the axis of at least part of the second channel portion 1014 has a non-zero angle with the axis of the first channel portion 1013. The angle adjustment member 20 is assembled on the side of the bending portion 12 away from the main body 11.

[0071] For example, please combine Figure 4 , Fig.11 and Fig.12 As shown, the bending portion 12 may include a first portion 121 connected to the main body 11 and a second portion 122 located in the first portion 121 away from the main body 11, and the second portion 122 is formed with a mounting slot 1220, and the second channel portion 1014 includes a first section 10141 located in the first portion 121 and a second section 10142 located in the second portion 122. The second section 10142 has an axis r2. The first section 10141 has an axis r20. The axis r20 of the first section 10141 is colinear or parallel to the axis r1 of the first channel portion 1013. The axis r2 of the second section 10142 and the axis r1 of the first channel portion 1013 have a non-zero angle α.

[0072] In some embodiments, the angle between the axis of at least part of the second channel portion 1014 and the axis of the first channel portion 1013 is 45°-90°, so that the dispensing head can be bent downward to facilitate dispensing of glue at the dispensing position on the operating table. Figure 4 The angle α shown is 45°-90°, so that after the dispensing rod is installed, the dispensing hole of the dispensing head is conveniently directed toward the dispensing position.

[0073] In some embodiments, the main body 11 and the bending portion 12 are integrally formed.

[0074] In some other embodiments, the main body 11 and the bending portion 12 are detachably assembled together.

[0075] In some embodiments, the first end 1001 of the glue dispensing rod 10 has a glue installation structure.

[0076] In some embodiments, the glue installation structure is an external thread on the periphery of the glue dispensing rod or an internal thread located at the first channel entrance 1011.

[0077] It is understandable that in some other embodiments, the glue installation structure may also be other structures that can be connected to the glue container or pipe.

[0078] In some embodiments, a machine mounting portion 111 is disposed on the outer wall of the dispensing rod 10 .

[0079] The machine mounting portion 111 is at least partially a flat mounting surface, so that the dispensing rod 10 can be fixed by the clamping jaws or other fixing structures of the machine.

[0080] In the absence of conflict, the above-mentioned embodiments and features thereof may be combined with each other.

[0081] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0082] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the disclosure disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0083] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A dispensing structure, It is characterized in that include: A glue dispensing rod having a first end and a second end which are opposite to each other, wherein the glue dispensing rod has a first glue flow channel which passes through the first end and the second end, wherein the first glue flow channel has a first channel inlet located at the first end, and the second end has a first channel outlet; An angle adjustment member is assembled at the second end of the dispensing rod, wherein the angle adjustment member has a second glue flow channel, wherein the second glue flow channel has a second channel inlet and a second channel outlet along the length direction of the angle adjustment member, and the second channel inlet is connected to the first channel outlet; A glue dispensing head is assembled at the outlet of the second channel of the angle adjustment member, and the glue dispensing head has at least two glue dispensing holes; the at least two glue dispensing holes include a first glue dispensing hole and a second glue dispensing hole; In which, the angle adjustment part has at least different installation positions, so that the at least two glue dispensing holes have at least two different first glue dispensing positions and second glue dispensing positions. In the first glue dispensing position, the line connecting the first glue dispensing hole and the second glue dispensing hole extends along the first direction. In the second glue dispensing position, the line connecting the first glue dispensing hole and the second glue dispensing hole extends along the second direction, and there is a non-zero angle between the first direction and the second direction.

2. The dispensing structure as claimed in claim 1, It is characterized in that The second end of the dispensing rod is provided with a mounting portion extending from the dispensing rod; The angle adjustment member comprises a channel shell for forming a second glue flow channel and a mounting matching portion located at the periphery of the channel shell, and the mounting matching portion is assembled with the mounting portion.

3. The dispensing structure as claimed in claim 2, It is characterized in that The mounting portion is provided with mounting holes located on opposite sides of the dispensing rod; The mounting fitting portion is provided with a plurality of fitting mounting holes arranged circumferentially along the outer periphery of the channel housing, and different fitting mounting holes are correspondingly connected to corresponding mounting holes through connecting members, so that the angle adjustment member is located at different mounting positions.

4. The dispensing structure as claimed in claim 3, It is characterized in that The mounting portion is mounting ears located on opposite sides of the dispensing rod.

5. The dispensing structure as claimed in claim 3, It is characterized in that The number of the matching mounting holes is an odd number.

6. The dispensing structure as claimed in claim 2, It is characterized in that The installation matching portion is arranged in the middle of the channel housing, and the channel housing comprises a first portion and a second portion located at opposite sides of the installation matching portion; The second end of the dispensing rod is provided with a mounting slot matched with the first part, and the first part is clamped in the mounting slot; The second part is provided with a dispensing head mounting structure, and the dispensing head mounting structure is a threaded structure.

7. The dispensing structure according to any one of claims 2 to 6, It is characterized in that The glue dispensing rod includes a main body extending along the length direction and a bending portion connected to the main body, the first glue flow channel includes a first channel portion located in the main body and a second channel portion located in the bending portion, and the axis of at least part of the second channel portion has a non-zero angle with the axis of the first channel portion; the angle adjustment member is assembled on the side of the bending portion away from the main body.

8. The dispensing structure as claimed in claim 7, It is characterized in that An angle between an axis of at least part of the second channel portion and an axis of the first channel portion is 45°-90°.

9. The dispensing structure as claimed in claim 7, It is characterized in that The main body and the bending portion are integrally formed; or, the main body and the bending portion are detachably assembled together.

10. The dispensing structure according to claim 1, It is characterized in that The first end of the glue dispensing rod has a glue installation structure; The glue installation structure is an external thread on the periphery of the glue dispensing rod or an internal thread located at the entrance of the first channel.

11. The dispensing structure according to claim 1, It is characterized in that The outer wall of the dispensing rod is provided with a machine mounting portion; At least a portion of the machine mounting portion is a flat mounting surface.

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