Hot melt adhesive piezoelectric injection valve

Abstract

The utility model belongs to the technical field of valves, and relates to a hot melt adhesive piezoelectric injection valve which comprises a piezoelectric element, one end of the piezoelectric element is communicated with a heating device through a pipeline, the heating device is communicated with a valve cavity through a communication port, and the valve cavity is used for storing and containing hot melt adhesive. A heat insulation pad is arranged between the outer surface of the heating device and the side wall of the piezoelectric element, meanwhile, the piezoelectric element and the heating device are installed through a connecting device, the connecting device comprises an installation block fixed to the heating device, the piezoelectric element is rotationally communicated with a rotating shaft, the rotating shaft is rotationally communicated with a nozzle, and the nozzle is connected with the piezoelectric element. The piezoelectric element is fixedly sleeved with a connecting piece, and a clamping rod is clamped on the connecting piece. Through the synergistic effect of all the components, including accurate heating control, flexible connection and angle adjustment design, efficient and accurate spraying and stable work of the hot melt adhesive are achieved, different working scenes and process requirements can be met, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and particularly to a hot melt adhesive piezoelectric jet valve. Background Technique

[0002] In modern industrial production, especially in the fields of electronics, automobiles, and medical treatment, there are increasingly high requirements for the precise and efficient application of adhesives. Traditional adhesive jetting methods often have problems such as insufficient precision, low efficiency, and poor glue temperature control, making it difficult to meet the increasingly high production process standards.

[0003] In electronic manufacturing, the bonding of tiny components requires extremely high precision and stability to ensure the performance and reliability of electronic devices. In automobile production, the rapid and precise bonding of components is crucial for improving production efficiency and product quality.

[0004] Previously, the heating control of hot melt adhesive jet valves was not precise enough, which easily led to unstable glue performance and affected the bonding effect. At the same time, the connection and installation methods of piezoelectric elements and other components were not flexible and stable enough, affecting the working stability and service life of the jet valve.

[0005] In addition, traditional jet valves are also inconvenient in terms of angle adjustment and component replacement, increasing the difficulty of equipment maintenance and debugging and reducing production efficiency.

[0006] In summary, in order to meet the requirements of modern industry for precise adhesive jetting, improve production efficiency and product quality, it has become an inevitable trend to develop a new type of hot melt adhesive piezoelectric jet valve. Content of the Utility Model

[0007] (1) Technical Problems to be Solved

[0008] Aiming at the deficiencies of the prior art, the utility model provides a hot melt adhesive piezoelectric jet valve, which solves the problems raised in the above background technique.

[0009] (2) Technical Solutions

[0010] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0011] A hot melt adhesive piezoelectric injection valve includes a piezoelectric element. One end of the piezoelectric element is connected to a heating device through a pipeline. The heating device is connected to a valve cavity through a communication port. The valve cavity is used to store and accommodate the hot melt adhesive. A heat insulation pad is provided on the side wall between the outer surface of the heating device and the piezoelectric element. At the same time, the piezoelectric element and the heating device are installed through a connecting device. The connecting device includes a mounting block fixed to the heating device. The piezoelectric element is rotationally connected to a rotating shaft. A nozzle is rotationally connected to the rotating shaft. A connecting piece is fixedly sleeved on the piezoelectric element, and a clamping rod is engaged with the connecting piece.

[0012] Further, the heating device includes a heating element and a temperature sensor provided inside.

[0013] Further, the heating element is a ceramic heating sheet.

[0014] Further, one end of the mounting block is rotatably connected to a left half hoop, and the other end of the mounting block is rotatably connected to a right half hoop. The left half hoop and the right half hoop are fastened by bolts.

[0015] Further, the bolt is rotatably connected to the left half hoop.

[0016] Further, the other end of the clamping rod is engaged on the surface of the rotating shaft for angle adjustment.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present utility model provides a hot melt adhesive piezoelectric injection valve, which has the following beneficial effects:

[0019] In the present utility model, through the synergistic effect of each component, including precise heating control, flexible connection and angle adjustment design, the efficient, precise injection and stable operation of the hot melt adhesive are realized, which can meet different working scenarios and process requirements, and improve production efficiency and product quality. Description of the drawings

[0020] Figure 1 It is a schematic structural diagram of the present utility model;

[0021] Figure 2 It is a schematic side view structural diagram of the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the connecting device of the present utility model;

[0023] Figure 4 It is a schematic structural diagram of the connection between the rotating shaft and the clamping rod of the present utility model.

[0024] In the figure: 1, piezoelectric element; 2, heating device; 3, valve cavity; 4, connecting device; 5, rotating shaft; 6, nozzle; 7, connecting piece; 8, clamping rod; 41, mounting block; 42, left half hoop; 43, right half hoop; 44, bolt. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment

[0027] As Figures 1-4 Shown, a hot melt adhesive piezoelectric injection valve proposed by an embodiment of the present invention includes a piezoelectric element 1. One end of the piezoelectric element 1 is connected to a heating device 2 through a pipeline. The heating device 2 is connected to a valve cavity 3 through a communication port. The valve cavity 3 is used to store and hold hot melt adhesive. A heat insulation pad is provided on the side wall between the outer surface of the heating device 2 and the piezoelectric element 1. At the same time, the piezoelectric element 1 and the heating device 2 are installed through a connecting device 4. The connecting device 4 includes a mounting block 41 fixed to the heating device 2. The piezoelectric element 1 is rotationally connected to a rotating shaft 5. The rotating shaft 5 is rotationally connected to a nozzle 6. A connecting piece 7 is fixedly sleeved on the piezoelectric element 1. A clamping rod 8 is clamped on the connecting piece 7; this hot melt adhesive piezoelectric injection valve is mainly composed of multiple key components.

[0028] The piezoelectric element 1 is an important part to realize the injection action, and one end of it is connected to the heating device 2 through a pipeline. The heating device 2 is used to heat the hot melt adhesive to keep it in a suitable flowing state, and then the heated hot melt adhesive is transported to the valve cavity 3 through the communication port for storage and accommodation. Setting a heat insulation pad on the side wall between the outer surface of the heating device 2 and the piezoelectric element 1 can effectively reduce the heat transfer to the piezoelectric element 1 and ensure the normal operation of the piezoelectric element 1.

[0029] The piezoelectric element 1 and the heating device 2 are installed through a connecting device 4. The mounting block 41 in the connecting device 4 is fixed to the heating device 2, playing a role of connection and fixation. The left half hoop 42 and the right half hoop 43 are fastened by bolts 44. This design is convenient for installation and disassembly, and is convenient for maintenance and replacement of components.

[0030] The piezoelectric element 1 is rotationally connected to the rotating shaft 5, and the rotating shaft 5 is rotationally connected to the nozzle 6, which enables the nozzle 6 to adjust the angle within a certain range and realize a more flexible injection direction.

[0031] The connecting piece 7 fixedly sleeved on the piezoelectric element 1 is engaged with the clamping rod 8, and the other end of the clamping rod 8 is engaged on the surface of the rotating shaft 5, so that the angle of the rotating shaft 5 can be adjusted, and further accurately control the spraying angle and position.

[0032] As Figure 2 shown, in some embodiments, the heating device 2 includes a heating element and a temperature sensor disposed therein; the heating element is used to generate heat and heat the hot melt adhesive to a suitable working temperature to ensure its fluidity and bonding performance.

[0033] As Figure 2 shown, in some embodiments, the heating element is a ceramic heating sheet; in actual production, if the temperature sensor detects that the temperature is lower than the set value, the control system will increase the power of the heating element to make it heat up quickly; when the temperature exceeds the set value, the control system will reduce the heating power or temporarily stop heating to prevent overheating.

[0034] As Figure 3 shown, in some embodiments, one end of the mounting block 41 is rotatably connected to the left half hoop 42, and the other end of the mounting block 41 is rotatably connected to the right half hoop 43, and the left half hoop 42 and the right half hoop 43 are fastened by bolts 44; the advantage of this design is that it is convenient for installation and disassembly, facilitating the maintenance and replacement of components, and can also provide sufficient fastening force to ensure that there is no looseness or displacement between the piezoelectric element 1 and the heating device 2 during operation.

[0035] As Figure 3 shown, in some embodiments, the bolt 44 is rotatably connected to the left half hoop 42; this rotatable connection design facilitates operation, enables the bolt 44 to remain connected to the left half hoop 42 when fastening the right half hoop 43, reduces the risk of loss of the bolt 44, and also improves the efficiency of installation and disassembly.

[0036] As Figure 4 shown, in some embodiments, the other end of the clamping rod 8 is engaged on the surface of the rotating shaft 5 for angle adjustment; if it is necessary to slightly adjust the spraying angle upward, the clamping position of the clamping rod 8 on the surface of the rotating shaft 5 can be moved, so that the rotating shaft 5 drives the nozzle 6 to rotate upward by a certain angle. This angle adjustment function increases the flexibility and adaptability of the injection valve in use and can meet different working scenarios and process requirements.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hot melt adhesive piezoelectric jet valve, comprising a piezoelectric element (1), characterized in that: One end of the piezoelectric element (1) is communicated with the heating device (2) through a pipeline. The heating device (2) is communicated with the valve cavity (3) through a communication port. The valve cavity (3) is used for storing and accommodating hot melt adhesive. A heat insulation pad is provided on the side wall between the outer surface of the heating device (2) and the piezoelectric element (1). At the same time, the piezoelectric element (1) and the heating device (2) are installed through a connecting device (4). The connecting device (4) includes a mounting block (41) fixed to the heating device (2). The piezoelectric element (1) is rotationally communicated with a rotating shaft (5). A nozzle (6) is rotationally communicated with the rotating shaft (5). A connecting member (7) is fixedly sleeved on the piezoelectric element (1). A clamping rod (8) is engaged with the connecting member (7).

2. The hot melt adhesive piezoelectric jet valve according to claim 1, wherein: The heating device (2) includes a heating element and a temperature sensor arranged inside.

3. The hot melt adhesive piezoelectric jet valve according to claim 2, characterized in that: The heating element is a ceramic heating sheet.

4. The hot melt adhesive piezoelectric jet valve according to claim 1, characterized in that: One end of the mounting block (41) is rotatably connected to the left half hoop (42), and the other end of the mounting block (41) is rotatably connected to the right half hoop (43). The left half hoop (42) and the right half hoop (43) are fastened by a bolt (44).

5. A hot melt adhesive piezoelectric jet valve according to claim 4, characterized in that: The bolt (44) is rotatably connected to the left half hoop (42).

6. The hot-melt adhesive piezoelectric jet valve according to claim 1, characterized in that: The other end of the clamping rod (8) is engaged on the surface of the rotating shaft (5) for angle adjustment.

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