Nozzle device for dispensing machine and dispensing machine

Abstract

The embodiment of the invention provides a nozzle device for a dispensing machine, and the nozzle device comprises a first nozzle part which is provided with a nozzle cavity and a nozzle channel communicated with the nozzle cavity; and the second nozzle part is connected to the first nozzle part, the second nozzle part is provided with a nozzle groove communicated with the nozzle cavity, the bottom of the nozzle groove is provided with a plurality of nozzle holes, and the shape of the nozzle groove corresponds to a preset dispensing pattern. The embodiment of the invention also provides a dispensing machine which comprises an injector used for injecting glue; and the nozzle device is connected with the injector and is used for coating glue to form a preset dispensing pattern. Through the nozzle device, preset dispensing patterns in any shape can be quickly and accurately formed, and the dispensing time is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of glue dispensing, and in particular to a nozzle device for a glue dispensing machine and the glue dispensing machine. Background Art

[0002] Existing dispensing machines include a syringe and a nozzle. During the dispensing process, air pressure is used to apply the glue in the syringe to the material through the needle hole of the nozzle. The needle hole of the nozzle is driven to move along the moving path of the XY worktable to perform dispensing, thereby forming a predetermined dispensing pattern.

[0003] However, due to the limitations of the XY worktable's movement, existing glue dispensers cannot apply glue to form glue patterns with right angles, such as an L-shape, and can only form chamfers with a certain curvature. In addition, due to the size limitations of the nozzle's needle hole, existing glue dispensers cannot apply glue patterns with edges of arbitrary sizes. For example, when the nozzle uses a 0.3mm needle hole, glue can be applied to form edges of 0.3mm, 0.6mm, etc., but cannot form edges of 0.5mm. In addition, during the glue dispensing process, since the XY worktable moves back and forth, glue is repeatedly dispensed at the end and intersection of each edge, and the volume of glue applied cannot be accurately controlled.

[0004] Therefore, the nozzle structure of the existing dispensing machine still needs to be further improved. Summary of the Invention

[0005] In order to solve the technical problems existing in the prior art, an embodiment of the present invention provides a nozzle device for a dispensing machine and a dispensing machine, through which a predetermined dispensing pattern of any shape can be formed quickly and accurately, saving dispensing time.

[0006] According to some embodiments of the present invention, a nozzle device for a glue dispensing machine is provided. The nozzle device includes: a first nozzle portion having a nozzle chamber and a nozzle channel communicating with the nozzle chamber; and a second nozzle portion connected to the first nozzle portion, the second nozzle portion having a nozzle slot communicating with the nozzle chamber, the bottom of the nozzle slot having a plurality of nozzle holes, wherein the shape of the nozzle slot corresponds to a predetermined glue dispensing pattern.

[0007] According to some embodiments of the present invention, the top wall of the nozzle chamber has a funnel shape.

[0008] According to some embodiments of the present invention, the distance between the side wall of the nozzle channel and the side wall of the nozzle chamber is 0 mm. ～ 20mm.

[0009] According to some embodiments of the present invention, the height of the top wall of the nozzle chamber is 1.5 mm. ～2mm, the height of the side wall of the nozzle chamber is 0mm ～ 3.5mm.

[0010] According to some embodiments of the present invention, a bottom of the nozzle slot protrudes beyond a bottom of the second nozzle portion, and a bottom of the nozzle hole protrudes beyond a bottom of the nozzle slot.

[0011] According to some embodiments of the present invention, the width of the nozzle slot is 1 mm. ～ 3mm, the height of the nozzle slot is 3mm ～ 8mm.

[0012] According to some embodiments of the present invention, the diameter of the nozzle hole is 0.15 mm ～ 0.5mm, the height of the nozzle hole is 2mm ～ 8mm.

[0013] According to some embodiments of the present invention, the plurality of nozzle holes are evenly distributed along the bottom of the nozzle slot.

[0014] According to some embodiments of the present invention, the distance between the centers of two adjacent nozzle holes is 0.5 mm to 2 mm.

[0015] According to some embodiments of the present invention, the first nozzle portion and the second nozzle portion are made of stainless steel.

[0016] According to some embodiments of the present invention, the first nozzle part and the second nozzle part are detachably connected.

[0017] According to some embodiments of the present invention, a glue dispensing machine is further provided, comprising: a syringe for injecting glue; and a nozzle device for the glue dispensing machine, the nozzle device being connected to the syringe and being used to apply glue to form a predetermined glue dispensing pattern.

[0018] Compared with the prior art, the technical solution of the embodiment of the present invention has the following advantages:

[0019] According to an embodiment of the present invention, the nozzle assembly includes a first nozzle portion having a nozzle chamber and a nozzle channel connected to the nozzle chamber; and a second nozzle portion connected to the first nozzle portion. The second nozzle portion is provided with a nozzle slot connected to the nozzle chamber, and the bottom of the nozzle slot is provided with multiple nozzle holes. The shape of the nozzle slot corresponds to a predetermined dispensing pattern. This nozzle assembly can quickly and accurately form a predetermined dispensing pattern of any shape, saving dispensing time.

[0020] During glue dispensing, glue enters the nozzle chamber through the nozzle channel, flows into the nozzle slot, and is then applied to the surface of the workpiece through the nozzle hole. Because the shape of the nozzle slot corresponds to the predetermined glue dispensing pattern, the predetermined glue dispensing pattern can be formed directly on the workpiece surface without the need for an XY worktable to drive the nozzle for dispensing. This allows for precise control of the volume of glue applied, allowing for the rapid and precise formation of predetermined glue dispensing patterns of any shape.

[0021] Furthermore, the top wall of the nozzle chamber has a funnel shape. By arranging in this way, it is possible to ensure that the glue can be discharged smoothly from the nozzle hole of the nozzle groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features and advantages of the present invention will be better understood through the following detailed description of the optional embodiments in conjunction with the accompanying drawings, in which the same reference numerals represent the same or similar components, wherein:

[0023] Figure 1 A cross-sectional schematic diagram of a nozzle device for a dispensing machine according to one embodiment of the present invention is shown;

[0024] Figure 2 Shown Figure 1 A schematic cross-sectional view of a first nozzle portion of a nozzle device for a dispensing machine;

[0025] Figure 3 Shown Figure 1 A schematic cross-sectional view of a second nozzle portion of a nozzle device for a dispensing machine;

[0026] Figure 4 Shown Figure 1 A side view of a nozzle device for a dispensing machine;

[0027] Figure 5 Shown Figure 1 A bottom schematic diagram of a nozzle device for a dispensing machine; and

[0028] Figure 6 Shown Figure 1 Schematic diagram of the flow of glue in the nozzle device used in the dispensing machine. DETAILED DESCRIPTION

[0029] The following describes the implementation and use of the embodiments in detail. However, it should be understood that the specific embodiments discussed are merely illustrative of specific ways to implement and use the present invention and are not intended to limit the scope of the present invention. When describing the structural positions of components, such as up, down, top, and bottom, directional references are not absolute but relative. These directional references are appropriate when the components are arranged as shown in the figures, but they will change accordingly if the positions of the components in the figures are changed.

[0030] In existing glue dispensing machines, due to the limitations of the movement of the XY worktable, existing glue dispensing machines cannot apply glue to form glue dispensing patterns with right angles, such as L-shapes, and can only form chamfers with a certain curvature. In addition, due to the size limitations of the nozzle's needle hole, existing glue dispensing machines cannot apply glue dispensing patterns with edges of various arbitrary sizes. For example, when the nozzle uses a 0.3mm needle hole, glue can be applied to form edges of 0.3mm, 0.6mm, etc., but it cannot form an edge of 0.5mm. In addition, during the glue dispensing process, because the XY worktable moves back and forth, glue is repeatedly dispensed at the end and intersection of each edge, and the volume of glue applied cannot be accurately controlled.

[0031] To this end, embodiments of the present invention provide a nozzle device for a glue dispensing machine. The nozzle device comprises a first nozzle portion having a nozzle chamber and a nozzle channel connected to the nozzle chamber; and a second nozzle portion connected to the first nozzle portion. The second nozzle portion is provided with a nozzle slot connected to the nozzle chamber. The bottom of the nozzle slot is provided with multiple nozzle holes, wherein the shape of the nozzle slot corresponds to a predetermined glue dispensing pattern. This nozzle device can quickly and accurately form a predetermined glue dispensing pattern of any shape, saving glue dispensing time.

[0032] The structure and function of the nozzle device for a glue dispensing machine according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Figure 1 A cross-sectional schematic diagram of a nozzle device for a glue dispensing machine according to an embodiment of the present invention is shown. Figure 2 Shown Figure 1 A schematic cross-sectional view of the first nozzle portion of a nozzle device for a dispensing machine. Figure 3 Shown Figure 1 A schematic cross-sectional view of the second nozzle portion of the nozzle device for a dispensing machine. Figure 4 Shown Figure 1 A side view of a nozzle assembly for a dispensing machine. Figure 5 Shown Figure 1 Schematic diagram of the bottom surface of the nozzle device for the dispensing machine.

[0034] like Figures 1 to 5As shown in FIG, a nozzle device 100 for a dispensing machine includes a first nozzle portion 10 and a second nozzle portion 20. The first nozzle portion 10 has a nozzle chamber 11 and a nozzle channel 12 communicating with the nozzle chamber 11. The second nozzle portion 20 is connected to the first nozzle portion 10 and is provided with a nozzle slot 21 communicating with the nozzle chamber 11. The bottom of the nozzle slot 21 is provided with a plurality of nozzle holes 22, wherein the shape of the nozzle slot 21 corresponds to a predetermined dispensing pattern.

[0035] During the dispensing process, the nozzle channel 12 is used in conjunction with a syringe, so the specific height and inner diameter of the nozzle channel 12 will be determined according to the syringe used in conjunction. Those skilled in the art can set it as needed, and the present invention does not limit this.

[0036] In some embodiments, the top wall 111 of the nozzle chamber 11 has a funnel shape to ensure that the glue can be discharged smoothly from the nozzle hole 22 of the nozzle groove 21.

[0037] In some embodiments, the distance D between the side wall 121 of the nozzle channel 12 and the side wall 112 of the nozzle chamber 11 is 0 mm. ～ For example, the distance between the side wall 121 of the nozzle channel 12 and the side wall 112 of the nozzle chamber 11 is 10 mm, 12 mm, 16 mm, etc.

[0038] In some embodiments, the height H1 of the top wall 111 of the nozzle chamber 11 is 1.5 mm. ～ 2mm, the height H2 of the side wall 112 of the nozzle chamber 11 is 0mm ～ For example, the height of the top wall 111 of the nozzle chamber 11 is 1.6 mm, 1.8 mm, etc., and the height of the side wall 112 of the nozzle chamber 11 is 1 mm, 2 mm, 3 mm, etc.

[0039] If the size of the desired dispensing pattern is smaller than that of the syringe, the distance between the sidewall 121 of the nozzle channel 12 and the sidewall 112 of the nozzle chamber 11 can be zero, and the corresponding funnel-shaped inclination angle is 90 degrees. In other words, there is no need to design the nozzle chamber 11 with a funnel-shaped top wall. If the distance between the sidewall 121 of the nozzle channel 12 and the sidewall 112 of the nozzle chamber 11 is determined to be 20 mm based on the size of the desired dispensing pattern, the corresponding funnel-shaped inclination angle is at least 4.3 degrees.

[0040] In some embodiments, the bottom of the nozzle slot 21 protrudes from the bottom of the second nozzle portion 20, and the bottom of the nozzle hole 22 protrudes from the bottom of the nozzle slot 21. In some embodiments, the second nozzle portion 20, the nozzle slot 21 provided thereon, and the nozzle hole 22 provided at the bottom of the nozzle slot 21 can be formed by integral molding or can be formed by connecting different parts.

[0041] In some embodiments, the width of the nozzle slot 21 is 1 mm. ～ 3mm, the height of the nozzle groove 21 is 3mm ～ For example, the width of the nozzle groove 21 is 1 mm, 2 mm, etc., and the height of the nozzle groove 21 is 5 mm, 6 mm, etc.

[0042] In some embodiments, the diameter of the nozzle hole 22 is 0.15 mm. ～ 0.5mm, the height of the nozzle hole 22 is 2mm ～ For example, the diameter of the nozzle hole 22 is 0.2 mm, 0.3 mm, 0.4 mm, etc., and the height of the nozzle hole 22 is 4 mm, 6 mm, etc.

[0043] In some embodiments, the plurality of nozzle holes 22 are evenly distributed along the bottom of the nozzle slot 21 .

[0044] In some embodiments, the distance between the centers of two adjacent nozzle holes 22 is 0.2 mm. ～ 1 mm. For example, the distance between the centers of two adjacent nozzle holes 22 is 0.5 mm.

[0045] In some embodiments, the multiple nozzle holes 22 may have the same diameter; in other embodiments, the multiple nozzle holes 22 may have different diameters. In some embodiments, the distance between the centers of two adjacent nozzle holes 22 may be the same; in other embodiments, the distance between the centers of two adjacent nozzle holes 22 may be different. Those skilled in the art can adjust the distance as needed.

[0046] In some embodiments, the first nozzle portion 10 and the second nozzle portion 20 are made of stainless steel. For example, the first nozzle portion 10 and the second nozzle portion 20 are made of 304 stainless steel.

[0047] In some embodiments, the first nozzle portion 10 and the second nozzle portion 20 are detachably connected. For example, the first nozzle portion 10 and the second nozzle portion 20 can be screwed or snapped together. When a different dispensing pattern is desired, only the second nozzle portion 20 needs to be replaced, without having to replace the entire nozzle assembly.

[0048] According to some embodiments of the present invention, a glue dispensing machine is further provided, comprising: a syringe for injecting glue; and a nozzle device for the glue dispensing machine, the nozzle device being connected to the syringe and being used to apply glue to form a predetermined glue dispensing pattern.

[0049] Figure 6 Shown Figure 1 Schematic diagram of the flow of glue in the nozzle device of the glue dispenser. Figure 6 As shown in , during the dispensing process, glue passes through the nozzle channel 12 of the first nozzle part 10 from the syringe under air pressure and fills the nozzle chamber 11. Then, the glue flows through the nozzle groove 21 of the second nozzle part 20, and is finally extruded through the nozzle hole 22 and applied to the surface of the workpiece to be dispensed. Since the shape of the nozzle groove 21 corresponds to the predetermined dispensing pattern, the predetermined dispensing pattern can be formed directly on the surface of the workpiece without the need to move the nozzle through the XY worktable to perform dispensing. The volume of the applied glue can be accurately controlled, and a predetermined dispensing pattern of any shape can be formed quickly and accurately. When a different dispensing pattern needs to be formed, only the second nozzle part 20 needs to be replaced without replacing the entire nozzle device.

[0050] The nozzle device for a glue dispenser according to the embodiments of the present invention can be applied to various glue dispensing applications. For example, the nozzle device can be used to form a glue pattern on a PCB, then a lens can be bonded to the PCB using the glue pattern, and then cured by UV light irradiation, thereby securing the lens to the PCB.

[0051] The nozzle device for a glue dispensing machine according to an embodiment of the present invention can quickly and accurately form a predetermined glue dispensing pattern of any shape, thereby saving glue dispensing time and improving product yield.

[0052] The technical content and technical features of the present invention have been disclosed above. However, it is understood that, based on the creative ideas of the present invention, those skilled in the art may make various changes and improvements to the above-disclosed concepts, all of which fall within the scope of protection of the present invention. The description of the above embodiments is illustrative and not restrictive. The scope of protection of the present invention is determined by the claims.

Claims

1. A nozzle device for a dispensing machine, characterized in that: include: a first nozzle portion having a nozzle chamber and a nozzle passage communicating with the nozzle chamber; as well as The second nozzle part is connected to the first nozzle part, and the second nozzle part is provided with a nozzle groove connected to the nozzle chamber, and a plurality of nozzle holes are provided at the bottom of the nozzle groove, wherein the shape of the nozzle groove corresponds to the predetermined dispensing pattern.

2. The nozzle device for a dispensing machine according to claim 1, characterized in that: The top wall of the nozzle chamber has a funnel shape.

3. The nozzle device for a dispensing machine according to claim 1, characterized in that: The distance between the side wall of the nozzle channel and the side wall of the nozzle chamber is 0 mm ～ 20mm.

4. The nozzle device for a dispensing machine according to claim 1, characterized in that: The height of the top wall of the nozzle chamber is 1.5 mm ～ 2mm, the height of the side wall of the nozzle chamber is 0mm ～ 3.5mm.

5. The nozzle device for a dispensing machine according to claim 1, characterized in that: A bottom of the nozzle groove protrudes from a bottom of the second nozzle portion, and a bottom of the nozzle hole protrudes from a bottom of the nozzle groove.

6. The nozzle device for a dispensing machine according to any one of claims 1 to 5, characterized in that: The width of the nozzle slot is 1 mm ～ 3mm, the height of the nozzle slot is 3mm ～ 8mm.

7. The nozzle device for a dispensing machine according to any one of claims 1 to 5, characterized in that: The diameter of the nozzle hole is 0.15 mm ～ 0.5mm, the height of the nozzle hole is 2mm ～ 8mm.

8. The nozzle device for a dispensing machine according to any one of claims 1 to 5, characterized in that: The plurality of nozzle holes are evenly distributed along the bottom of the nozzle slot.

9. The nozzle device for a dispensing machine according to claim 8, characterized in that: The distance between the centers of two adjacent nozzle holes is 0.2 mm to 1 mm.

10. The nozzle device for a dispensing machine according to any one of claims 1 to 5, characterized in that: The first nozzle part and the second nozzle part are made of stainless steel.

11. The nozzle device for a dispensing machine according to any one of claims 1 to 5, characterized in that: The first nozzle portion and the second nozzle portion are detachably connected.

12. A dispensing machine, characterized in that: include: Syringe, for injecting glue; as well as The nozzle device for a glue dispensing machine according to any one of claims 1 to 11, wherein the nozzle device is connected to the syringe and is used to apply glue to form a predetermined glue dispensing pattern.

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