Glue barrel of automatic dispensing machine
By setting a raised and elastic structure at the bottom of the extrusion plate of the glue tank in the automatic dispensing machine, the problem of incomplete glue dispensing is solved, the full utilization of glue material and the smoothness of glue dispensing are achieved, and glue material waste is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-20
AI Technical Summary
The existing automatic dispensing machine's glue tank structure results in incomplete glue dispensing, leading to glue waste and low utilization.
A protrusion is provided at the bottom of the extrusion plate. The protrusion can extend into the glue outlet channel as the extrusion plate moves down, squeezing the residual glue material to the outside of the glue barrel. An elastic structure is provided on the extrusion part to fill the gap to ensure that the glue material is completely extruded.
Reduce adhesive waste, improve adhesive utilization, and ensure smooth and complete adhesive dispensing.
Smart Images
Figure CN224010305U_ABST
Abstract
Description
Technical Field
[0001] This disclosure belongs to the field of dispensing technology, specifically relating to a glue tank for an automatic dispensing machine. Background Technology
[0002] Currently, automatic glue dispensing machines have been widely used in electronic components, semiconductor packaging, and automotive parts industries. These machines typically use a pressure tank design, where a cylinder piston squeezes the bottom plate of the glue tank to dispense the glue. In current glue tank structures, both the bottom plate and the inner wall of the front end of the tank are flat, while the dispensing nozzle protrudes from the outer wall of the front end. Because the bottom plate is squeezed by the cylinder piston until it contacts the inner wall of the front end of the tank, the glue stored in the nozzle cannot be expelled, resulting in incomplete glue dispensing. Utility Model Content
[0003] The purpose of this application is to provide a glue bucket for an automatic dispensing machine. By setting a protrusion at the bottom of the extrusion plate and allowing the protrusion to extend into the glue dispensing channel as the extrusion plate moves downward, the protrusion can squeeze the glue material remaining in the glue dispensing channel to the outside of the glue bucket of the automatic dispensing machine, thereby reducing glue waste and improving the utilization rate of glue material.
[0004] This disclosure provides an automatic dispensing machine glue bucket, including: a bucket body having a receiving space inside; and a glue outlet at the bottom of the bucket body communicating with the receiving space.
[0005] A dispensing cylinder is disposed at the dispensing port; the dispensing cylinder has an axially extending dispensing channel, which communicates with the dispensing port;
[0006] An extrusion member is disposed within the receiving space and is capable of sliding along the axial direction of the barrel body; the extrusion member includes an extrusion plate and a protrusion disposed at the bottom of the extrusion plate and extending downward, the extrusion plate abutting against the inner sidewall of the barrel body;
[0007] The protrusion can extend into the glue outlet channel as the extrusion plate moves downward.
[0008] In one exemplary embodiment of this disclosure, the height of the protrusion is less than or equal to the height of the dispensing channel.
[0009] In one exemplary embodiment of this disclosure, when the protrusion extends into the dispensing channel, there is a gap between the outer side of the protrusion and the inner wall of the dispensing cylinder, and the width of the gap is not less than 2 mm.
[0010] In an example embodiment of the present disclosure, the extrusion member comprises an elastic structure, the elastic structure covers the outer sidewall and the bottom wall of the extrusion plate, and the elastic structure is connected to the extrusion plate; when the extrusion member moves to the limit position of the bottom of the barrel, the outer surface of the elastic structure away from the extrusion plate is attached to the inner wall of the barrel.
[0011] In an example embodiment of the present disclosure, the thickness of the elastic structure is not less than 2 mm.
[0012] In an example embodiment of the present disclosure, the extrusion member is made of plastic; and / or,
[0013] The elastic structure is made of rubber material.
[0014] In an example embodiment of the present disclosure, the barrel comprises a barrel bottom wall and a barrel sidewall arranged around the barrel bottom wall, the bottom surface of the barrel sidewall is connected to the top surface of the barrel bottom wall, and the barrel sidewall and the barrel bottom wall form the containing space; the glue outlet is arranged through the barrel bottom wall;
[0015] The barrel bottom wall has a positioning area and a butt joint area, the butt joint area is arranged around the outer circumferential side of the positioning area, and the outer circumferential surface of the butt joint area is connected to the inner surface of the barrel sidewall; the positioning area is arranged around the glue outlet, and the outer circumferential surface of the positioning area is connected to the butt joint area.
[0016] The inner surface of the positioning area is inclined downward from outside to inside; and the bottom of the extrusion plate is shaped to be adapted to the shape of the inner surface of the barrel bottom wall.
[0017] In an example embodiment of the present disclosure, the inner surface of the butt joint area is inclined downward from outside to inside, and the inclination angle of the inner surface of the butt joint area is less than or equal to the inclination angle of the inner surface of the positioning area.
[0018] In an example embodiment of the present disclosure, the inclination angle of the inner surface of the positioning area is 45°.
[0019] In an example embodiment of the present disclosure, the thickness of the extrusion plate is not less than 5 mm.
[0020] The technical scheme provided by the example embodiments of the present disclosure has at least the following advantages:
[0021] In the example embodiments of the present disclosure, the protrusion is arranged at the bottom of the extrusion plate, the protrusion protrudes downward in the direction away from the extrusion plate, and the protrusion can extend into the glue outlet channel when the extrusion plate moves downward, so that the protrusion can extrude the glue material remaining in the glue outlet channel to the outside of the glue barrel of the automatic glue dispenser, thereby reducing the waste of glue material and improving the utilization rate of the glue material.
[0022] Other features and advantages of the present application will become apparent from the following detailed description, taken in conjunction with the accompanying drawings.
[0023] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS
[0024] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. It is apparent that the drawing in the following description is only some embodiments of the present disclosure, and other drawings can be obtained by those of ordinary skill in the art without creative labor on the basis of these drawings.
[0025] Figure 1 A cross-sectional structure schematic diagram of the glue bucket of the automatic glue dispenser in the embodiment of the present disclosure is shown.
[0026] Figure 2 A cross-sectional structure schematic diagram of the barrel and glue dispensing cylinder in the embodiment of the present disclosure is shown.
[0027] Figure 3 A structure schematic diagram of the extrusion piece in the embodiment of the present disclosure is shown.
[0028] Explanation of reference signs:
[0029] 1, glue bucket of automatic glue dispenser; 2, barrel; 21, containing space; 22, glue outlet; 23, barrel side wall; 24, barrel bottom wall; 241, alignment area; 242, butt joint area; 3, glue dispensing cylinder; 31, glue dispensing channel; 4, extrusion piece; 41, extrusion plate; 42, protrusion; 43, elastic structure. DETAILED DESCRIPTION
[0030] Example implementations will now be described with reference to the drawings; however, it should be understood that the example implementations can be practiced in many different forms and should not be construed as limited to the examples set forth in this disclosure. Rather, these example implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concepts of the example implementations to those skilled in the art.
[0031] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, implementations, and operations have not been shown or described in detail to avoid obscuring aspects of the application.
[0032] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.
[0033] like Figure 1 As shown, this disclosure provides an automatic dispensing machine glue tank 1, which may include: a tank body 2, a dispensing cylinder 3, and an extruder 4.
[0034] Specifically, the barrel 2 has a receiving space 21 inside, and a glue outlet 22 is opened at the bottom of the barrel 2, which is connected to the receiving space 21.
[0035] like Figure 2 As shown, in some embodiments, the barrel 2 may include a bottom wall 24 and a side wall 23 surrounding the bottom wall 24. The bottom surface of the side wall 23 is connected to the top surface of the bottom wall 24, and a receiving space 21 is formed between the side wall 23 and the bottom wall 24. The glue outlet 22 is provided through the bottom wall 24.
[0036] For example, in this embodiment of the present disclosure, the bottom wall 24 of the bucket can be a circular bottom plate, and the side wall 23 of the bucket is arranged around the outer perimeter of the bottom wall 24, so that the bucket body 2 as a whole can be a cylinder with an internal accommodating space 21.
[0037] The dispensing cylinder 3 is located at the dispensing port 22. The dispensing cylinder 3 has an axially extending dispensing channel 31, which communicates with the dispensing port 22.
[0038] Specifically, in this embodiment of the present disclosure, the dispensing tube 3 is disposed outside the receiving space 21 and is connected to the outer surface of the bottom wall 24 away from the receiving space 21.
[0039] The extrusion member 4 is disposed within the receiving space 21 and is capable of sliding along the axial direction of the barrel 2. For example... Figure 3 As shown, the extrusion component 4 may include an extrusion plate 41 and a protrusion 42 disposed at the bottom of the extrusion plate 41 and extending downward. The extrusion plate 41 abuts against the inner side wall of the barrel body 2. The protrusion 42 can extend into the glue dispensing channel 31 as the extrusion plate 41 moves downward.
[0040] It should be noted that the axial direction mentioned above refers to the extension direction of the central axis of the barrel 2, that is, the extension direction of the barrel 2.
[0041] Specifically, in this embodiment of the present disclosure, the protrusion 42 is connected to the top surface of the extrusion plate 41 near the extrusion plate 41, and the protrusion 42 extends in a direction away from the extrusion plate 41.
[0042] The outer circumferential surface of the extrusion plate 41 can abut against the inner side wall of the barrel 2 to avoid a gap between the outer circumferential surface of the extrusion plate 41 and the inner side wall of the barrel 2, so that when the extrusion plate 41 slides downward along the axial direction of the barrel 2, the extrusion plate 41 can completely extrude the glue material at the bottom thereof downward to realize glue discharge, thereby avoiding the problem that the glue material flows to the top surface of the extrusion plate 41 through the gap between the outer circumferential surface of the extrusion plate 41 and the inner side wall of the barrel 2 and cannot be discharged through the glue discharge channel 31.
[0043] In the embodiments of the present disclosure, the protrusion 42 can extend into the glue discharge channel 31 with the downward movement of the extrusion plate 41, and the glue material remaining in the glue discharge channel 31 can be extruded out of the automatic glue dispenser barrel 1 by the protrusion 42, thereby reducing the waste of glue material and improving the utilization rate of the glue material.
[0044] In some embodiments, the height of the protrusion 42 can be less than or equal to the height of the glue discharge channel 31.
[0045] For example, the height of the protrusion 42 can be equal to the height of the glue discharge channel 31, so that the glue material remaining in the glue discharge channel 31 can be reduced to the maximum extent, and the risk that the protrusion 42 is damaged due to contact with external structures when the protrusion 42 extends out of the glue discharge channel 31 can also be reduced.
[0046] In some embodiments, when the protrusion 42 extends into the glue discharge channel 31, the outer side surface of the protrusion 42 can have a gap with the inner side wall of the glue dispensing cylinder 3.
[0047] For example, when the protrusion 42 extends into the glue discharge channel 31, the central axis of the protrusion 42 can coincide with the central axis of the glue dispensing cylinder 3, and at this time, the outer side surface of the protrusion 42 and the inner side wall of the glue dispensing cylinder 3 form an annular gap, and the glue material can flow to the outside of the automatic glue dispenser barrel 1 through the annular gap to realize uniform glue discharge and improve the smoothness of glue discharge.
[0048] However, the protrusion 42 can not be limited to this, and when the protrusion 42 extends into the glue discharge channel 31, part of the outer side surface of the protrusion 42 can abut against the inner side wall of the glue dispensing cylinder 3, and part of the outer side surface of the protrusion 42 can be spaced apart from the inner side wall of the glue dispensing cylinder 3, so that the glue material can flow to the outside of the automatic glue dispenser barrel 1 through the gap to realize glue discharge.
[0049] In some embodiments, when the protrusion 42 extends into the glue discharge channel 31, the width of the gap between the outer side surface of the protrusion 42 and the inner side wall of the glue dispensing cylinder 3 can be not less than 2 mm to ensure the smoothness of glue discharge of the automatic glue dispenser barrel 1.
[0050] For example, the width of the gap between the outer side of the protrusion 42 and the inner wall of the dispensing cylinder 3 can be 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, etc., but is not limited to these. The specific value of the gap width can be determined according to the actual situation.
[0051] In some embodiments, the extrusion 4 may be made of plastic. However, it is not limited to this; other materials with good plasticity, processability, corrosion resistance, etc., besides plastic, may also be used as materials for preparing the extrusion 4.
[0052] In some embodiments, the thickness of the extrusion plate 41 may be not less than 5 mm.
[0053] For example, the thickness of the extrusion plate 41 can be 5mm, 5.2mm, 5.4mm, 5.6mm, 5.8mm, 6mm, 6.2mm, 6.4mm, 6.6mm, 6.8mm, 7mm, etc., but is not limited to these. The specific value of the gap width can be determined according to the actual situation.
[0054] This embodiment of the invention limits the thickness of the extrusion plate 41 to ensure the structural strength of the extrusion plate 41, reduce the possibility of deformation under pressure due to excessive thinness of the extrusion plate 41, and at the same time, avoid excessive occupation of the accommodating space 21 due to excessive thickness of the extrusion plate 41, thereby ensuring the amount of glue stored in the glue tank 1 of the automatic dispensing machine.
[0055] like Figure 1 and Figure 3 As shown, in some embodiments, the extruder 4 may further include an elastic structure 43, which covers the outer wall and bottom wall of the extrusion plate 41 and is connected to the extrusion plate 41. When the extruder 4 moves to the extreme position at the bottom of the barrel 2, the elastic structure 43 moves away from the outer surface of the extrusion plate 41 and fits against the inner wall of the barrel 2.
[0056] It should be noted that when the extruder 4 moves axially downward within the accommodating space 21 until it can no longer move, that is, the extruder 4 has moved to the limit position at the bottom of the barrel 2.
[0057] Specifically, the elastic structure 43 in this disclosure can be bonded to the outer wall and bottom wall of the extrusion plate 41. When the extruder 4 moves to the extreme position at the bottom of the barrel 2, the elastic structure 43 is completely attached to the inner surface of the bottom wall 24 and the inner surface of the side wall 23 of the barrel, away from the outer surface of the extrusion plate 41.
[0058] It should also be noted that the extrusion part 4 is usually pushed down in the receiving space 21 by the cylinder piston on its top surface. During the downward movement, the extrusion part 4 deforms and protrudes 42 due to the extrusion action, so that at the extreme position, only the middle deformed protrusion 42 part of the extrusion part 4 contacts the bottom of the barrel 2, while there is a gap between the other edge parts of the extrusion part 4 and the inner wall of the barrel 2.
[0059] This embodiment of the present disclosure provides an elastic structure 43 covering the outer and bottom walls of the extrusion plate 41. The elastic structure 43 fills the gap between the extrusion plate 41 and the inner wall of the barrel 2 caused by the extrusion deformation, thereby allowing the adhesive material to be fully extruded and improving the utilization rate of the adhesive material.
[0060] In some embodiments, the elastic structure 43 may be made of a rubber material. However, it is not limited to this, and the present disclosure may also use other materials besides rubber that are capable of elastic deformation under compression.
[0061] In some embodiments, the thickness of the elastic structure 43 is not less than 2 mm.
[0062] For example, the thickness of the elastic structure 43 can be 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, etc., but is not limited to these values. The thickness of the elastic structure 43 can be determined according to the actual situation. This disclosure limits the minimum thickness of the elastic structure 43 to avoid the problem that the elastic structure 43 is too thin to fill the gap between the extrusion plate 41 and the inner wall of the barrel 2 caused by extrusion deformation.
[0063] like Figure 2 As shown, in some embodiments, the bottom wall 24 of the barrel may include an alignment area 241 and a mating area 242. The mating area 242 may be disposed around the outer periphery of the alignment area 241, and the outer periphery of the mating area 242 opposite to the outer periphery of the mating area 242 is connected to the inner surface of the barrel side wall 23. The alignment area 241 is disposed around the dispensing port 22, and the outer periphery of the alignment area 241 near the mating area 242 is connected to the mating area 242. The dispensing cylinder 3 may be disposed on the outer surface of the bottom wall 24 opposite to the receiving space 21 and connected to the outer surface of the bottom wall 24.
[0064] Specifically, the inner circumferential surface of the alignment area 241, which is opposite to the docking area 242, can be connected to the top surface of the dispensing cylinder 3. The orthographic projection of the dispensing channel 31 on the bottom wall 24 of the cylinder can coincide with the dispensing port 22.
[0065] In this embodiment, the inner surface of the alignment region 241 can be inclined downward from the outside to the inside, and the bottom shape of the extrusion plate 41 can be adapted to the shape of the inner surface of the barrel bottom wall 24.
[0066] For example, the inclination angle of the inner surface of the alignment area 241 can be 45°.
[0067] It should be noted that the direction from outside to inside of the inner surface of the alignment area 241 refers to the direction from the outer circumferential side of the alignment area 241 to the center thereof.
[0068] In the embodiment of the present disclosure, when the inner surface of the alignment area 241 is inclined downward from outside to inside, the area of the bottom surface of the barrel bottom wall 24 corresponding to the alignment area 241 is also inclined downward from outside to inside, and the inclination angle is the same as that of the inner surface of the alignment area 241, so that when the extrusion member 4 moves downward to the limit position, the bottom surface of the extrusion plate 41 can completely fit on the inner surface of the barrel bottom wall 24 to extrude the glue material at the bottom of the extrusion plate 41 into the glue outlet channel 31, thereby reducing the residual glue material inside the automatic glue dispenser barrel 1, and improving the utilization rate of the glue material.
[0069] In addition, in the embodiment of the present disclosure, the inner surface of the alignment area 241 is inclined downward from outside to inside to form a guide angle on the area of the barrel bottom wall 24 close to the glue outlet 22, so that the problem of stress concentration on the area of the barrel bottom wall 24 close to the glue outlet 22 and the rupture of the barrel bottom wall 24 can be reduced. At the same time, the guide angle formed by the alignment area 241 can also be used to reduce the requirement for the alignment accuracy between the protrusion 42 and the glue outlet channel 31, thereby reducing the difficulty in manufacturing the automatic glue dispenser barrel 1 and improving the smoothness of glue dispensing.
[0070] In some embodiments, the inner surface of the butt joint area 242 can also be inclined downward from outside to inside, so that the glue material can flow smoothly along the inclined surface of the inner surface of the butt joint area 242 into the glue outlet channel 31, thereby reducing the residual glue material inside the automatic glue dispenser barrel 1.
[0071] For example, the inclination angle of the inner surface of the butt joint area 242 can be smaller than that of the inner surface of the alignment area 241, so that while reducing the residual glue material inside the automatic glue dispenser barrel 1, the problem of too small accommodating space 21 caused by too large inclination angle of the inner surface of the butt joint area 242 can also be avoided, thereby ensuring the glue storage capacity of the barrel body 2.
[0072] In addition, the inclination angle of the inner surface of the butt joint area 242 can be equal to that of the inner surface of the alignment area 241. At this time, the inner surface of the butt joint area 242 and the inner surface of the alignment area 241 are on the same plane, so that the processing step of making the inclination angle of the inner surface of the butt joint area 242 different from that of the alignment area 241 can be reduced, thereby reducing the difficulty in manufacturing the barrel bottom wall 24.
[0073] However, the inner surface of the butt joint area 242 can also be parallel to the horizontal plane in the embodiment of the present disclosure to ensure the glue storage capacity of the barrel body 2.
[0074] It should be noted that terms such as "upper," "lower," "left," and "right" are used only for distinction and convenience of description, and do not impose any positional limitations on the embodiments of the present invention. For example, "upper" in practice can refer to "lower," "left," or "right." In this disclosure, unless otherwise explicitly specified and limited, terms such as "assembly" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this disclosure can be understood according to the specific circumstances.
[0075] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0076] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.
Claims
1. A glue bucket for an automatic dispensing machine, characterized in that, include: The barrel has an internal storage space; the bottom of the barrel has a glue outlet that communicates with the storage space. A dispensing cylinder is disposed at the dispensing port; the dispensing cylinder has an axially extending dispensing channel, which communicates with the dispensing port; An extrusion member is disposed within the receiving space and is capable of sliding along the axial direction of the barrel body; the extrusion member includes an extrusion plate and a protrusion disposed at the bottom of the extrusion plate and extending downward, the extrusion plate abutting against the inner sidewall of the barrel body; The protrusion can extend into the glue outlet channel as the extrusion plate moves downward.
2. The glue tank of the automatic dispensing machine according to claim 1, characterized in that, The height of the protrusion is less than or equal to the height of the dispensing channel.
3. The glue tank of the automatic dispensing machine according to claim 1, characterized in that, When the protrusion extends into the dispensing channel, there is a gap between the outer side of the protrusion and the inner wall of the dispensing tube, and the width of the gap is not less than 2mm.
4. The glue tank of the automatic dispensing machine according to claim 1, characterized in that, The extrusion member includes an elastic structure that covers the outer and bottom walls of the extrusion plate and is connected to the extrusion plate. When the extrusion member moves to the extreme position at the bottom of the barrel, the elastic structure moves away from the outer surface of the extrusion plate and fits against the inner wall of the barrel.
5. The glue tank of the automatic dispensing machine according to claim 4, characterized in that, The thickness of the elastic structure is not less than 2 mm.
6. The glue tank of the automatic dispensing machine according to claim 4, characterized in that, The extrusion is made of plastic; and / or, The elastic structure is made of rubber material.
7. The glue tank of the automatic dispensing machine according to claim 1, characterized in that, The barrel body includes a bottom wall and a side wall surrounding the bottom wall. The bottom surface of the side wall is connected to the top surface of the bottom wall, and the receiving space is formed between the side wall and the bottom wall. The dispensing port is provided through the bottom wall. The bottom wall of the barrel has an alignment area and a docking area. The docking area is arranged around the outer periphery of the alignment area, and the outer periphery of the docking area is connected to the inner surface of the barrel side wall. The alignment area is arranged around the dispensing port, and the outer periphery of the alignment area is connected to the docking area. The inner surface of the alignment zone slopes downward from the outside to the inside; the bottom shape of the extrusion plate is adapted to the shape of the inner surface of the barrel bottom wall.
8. The glue tank of the automatic dispensing machine according to claim 7, characterized in that, The inner surface of the docking area slopes downward from the outside to the inside, wherein the slope angle of the inner surface of the docking area is less than or equal to the slope angle of the inner surface of the alignment area.
9. The glue tank of the automatic dispensing machine according to claim 7, characterized in that, The tilt angle of the inner surface of the alignment region is 45°.
10. The glue tank of the automatic dispensing machine according to claim 1, characterized in that, The thickness of the extrusion plate is not less than 5 mm.