Direct-down adjusting type double piezoelectric ceramic dispensing valve device

Abstract

The utility model discloses a direct-down adjusting type double piezoelectric ceramic dispensing valve device which comprises a dispensing assembly, a valve body and an adjusting piece, the dispensing assembly comprises a glue barrel, a glue outlet seat and a nozzle, a glue inlet and a glue outlet are formed in the glue outlet seat, the glue barrel is communicated with the glue inlet, and the nozzle is communicated with the glue outlet; the valve body comprises a valve shell, a conduction piece, a first piezoelectric valve, a second piezoelectric valve and a valve element. The valve shell is arranged on the glue outlet seat; the conduction piece is arranged in the valve shell and comprises a transmission end and a pressing end, the first piezoelectric valve and the second piezoelectric valve are both arranged in the valve shell, the first piezoelectric valve is used for driving the pressing end to rotate downwards, and the second piezoelectric valve is used for driving the pressing end to rotate upwards; the valve element is arranged in the valve shell and used for closing or opening the nozzle. The adjusting piece is arranged in the valve shell and used for limiting the first piezoelectric valve and the second piezoelectric valve. The piezoelectric valve is simple in structure and convenient to use, opening and closing of the valve can be accurately controlled, the height of the piezoelectric valve can be conveniently adjusted, abrasion is avoided, and application and popularization are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to point gum equipment technical field especially relates to a direct downward adjustment formula double piezoelectric ceramic point gum valve device. BACKGROUND

[0002] Point gum is an important process in the production and processing of smart electronic equipment such as mobile phones, tablets, etc., also called glue application, glue coating, glue filling, glue dripping, etc., is to smear, fill, drop electronic glue, oil or other liquids on the product, so that the product plays the role of sticking, filling, insulation, fixing, surface smoothness, etc.

[0003] The point gum valve is the core component in the point gum equipment, which can apply the glue to the surface of the workpiece according to the predetermined amount requirement. In the prior art, only a single piezoelectric valve is generally provided in the point gum valve for controlling the closing of the valve, and the opening of the valve is completely completed by the return spring, but the return spring is prone to deformation after long-term use, thereby reducing the elastic force and affecting the opening of the valve. In addition, a horizontally movable pushing structure is generally provided inside the point gum valve, which can abut against the inclined surface at the upper end of the piezoelectric valve, and the height of the piezoelectric valve is adjusted by the abutting position of the pushing structure and the inclined surface. However, this height adjustment method is prone to wear phenomenon, and also prone to deflection of the piezoelectric valve, thereby reducing the service life of the piezoelectric valve and affecting the use. SUMMARY

[0004] The utility model aims at at least in a certain extent solves one of the technical problems in the prior art. Therefore, the purpose of the utility model is to provide a direct downward adjustment formula double piezoelectric ceramic point gum valve device.

[0005] To achieve the above-mentioned purpose, according to the direct downward adjustment formula double piezoelectric ceramic point gum valve device of the utility model embodiment, it comprises:

[0006] The point gum assembly comprises a glue barrel, a glue outlet seat and a nozzle, the glue outlet seat is provided with a glue inlet and a glue outlet in communication, the glue barrel is arranged on the glue outlet seat and communicates with the glue inlet, and the nozzle is arranged at the bottom of the glue outlet seat and communicates with the glue outlet.

[0007] The valve body comprises a valve shell, a conducting piece, a first piezoelectric valve, a second piezoelectric valve and a valve core; the valve shell is arranged on the glue outlet base and connected with the glue barrel; the conducting piece is movably arranged in the valve shell and comprises a transmission end and a pressing end; the first piezoelectric valve and the second piezoelectric valve are arranged in the valve shell and connected with the transmission end; the first piezoelectric valve is used to drive the pressing end to rotate downward, and the second piezoelectric valve is used to drive the pressing end to rotate upward; the valve core is arranged in the valve shell and configured to move downward to close the nozzle when pressed by the pressing end and move upward to open the nozzle when not pressed by the pressing end.

[0008] The adjusting piece is vertically arranged in the valve shell and abuts against the upper end faces of the first piezoelectric valve and the second piezoelectric valve, and is used to limit the first piezoelectric valve and the second piezoelectric valve.

[0009] The straight-down adjusting type double-piezoelectric-ceramic glue dispensing valve device has the advantages of simple structure, convenient use, accurate control of the opening and closing of the valve, convenient adjustment of the height of the piezoelectric valve, no wear and the like, and is conducive to popularization and use.

[0010] In addition, the straight-down adjusting type double-piezoelectric-ceramic glue dispensing valve device according to the above-mentioned embodiments of the present application can further have the following additional technical features:

[0011] According to one embodiment of the present application, the connecting seat is arranged on the side wall of the valve shell and connected with the middle part of the glue barrel.

[0012] According to one embodiment of the present application, the glue outlet base is internally provided with a glue outlet channel which gradually extends downward from left to right;

[0013] The glue inlet is arranged on the left end of the upper surface of the glue outlet base and connected with the glue outlet channel; and the glue outlet is arranged on the middle part of the lower surface of the glue outlet base and connected with the nozzle.

[0014] According to one embodiment of the present application, the left side wall of the glue outlet base is provided with a liquid inlet adjacent to the glue inlet, and the liquid inlet is connected with the glue outlet channel.

[0015] According to one embodiment of the present application, the valve shell comprises a lower shell and a top cover;

[0016] The conducting piece, the first piezoelectric valve, the second piezoelectric valve and the valve core are arranged in the lower shell, and the lower end of the adjusting piece is arranged in the lower shell and the upper end is arranged outside the lower shell.

[0017] The top cover is detachably arranged on the top of the lower shell and used for covering the adjusting member.

[0018] According to an embodiment of the present application, the top surface of the lower shell is provided with two threaded holes.

[0019] The adjusting member is provided with two, both of which are screw rods and are respectively threadedly connected with the two threaded holes and respectively abut against the first piezoelectric valve and the second piezoelectric valve at lower ends.

[0020] According to an embodiment of the present application, the transmission end of the conducting member is provided with an arc-shaped rotating part on a bottom surface, which is in rotating cooperation with an arc-shaped groove in the lower shell.

[0021] The transmission end of the conducting member is provided with two first arc-shaped abutting parts on a top surface, which are respectively located on left and right sides of the arc-shaped rotating part and respectively abut against first arc-shaped grooves on bottom surfaces of the first piezoelectric valve and the second piezoelectric valve.

[0022] According to an embodiment of the present application, the top ends of the first piezoelectric valve and the second piezoelectric valve are respectively provided with second arc-shaped abutting parts.

[0023] The lower ends of the two adjusting members are respectively provided with second arc-shaped grooves, and the two second arc-shaped abutting parts are respectively clamped in the two second arc-shaped grooves.

[0024] According to an embodiment of the present application, the valve core comprises a core seat, a core body and a reset member.

[0025] The core seat is arranged in the lower shell, and a central hole is arranged on the core seat and extends in a vertical direction.

[0026] The core body is movably arranged in the central hole, penetrates into the nozzle at a lower end and abuts against the compression end of the conducting member at an upper end.

[0027] The reset member is arranged at a top end of the core seat and is sleeved on the core body.

[0028] When the core body is compressed by the compression end, the compression end can force the core body to move downward to close the nozzle; when the core body is not compressed by the compression end, the reset member can force the core body to move upward to open the nozzle.

[0029] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0031] Figure 1 is a sectional view of the embodiment of the present application;

[0032] Figure 2 is a structural schematic view of the embodiment of the present application;

[0033] Figure 3 is a sectional view of the valve body in the embodiment of the present application;

[0034] Figure 4 is Figure 3 is a local enlarged view of A in the above figure;

[0035] Figure 5 is Figure 3 is a local enlarged view of B in the above figure;

[0036] Figure 6 is Figure 3 is a local enlarged view of C in the above figure;

[0037] Figure 7 is a sectional view of the glue outlet seat in the embodiment of the present application.

[0038] Reference signs:

[0039] Dispensing assembly 10;

[0040] Glue barrel 11;

[0041] Glue outlet seat 12;

[0042] Glue inlet 121;

[0043] Glue outlet 122;

[0044] Nozzle 123;

[0045] Glue channel 124;

[0046] Liquid inlet 125;

[0047] Valve body 20;

[0048] Valve shell 21;

[0049] Lower shell 211;

[0050] Top cover 212;

[0051] Conductor 22;

[0052] Transmission end 221;

[0053] Arc-shaped rotating part 2211;

[0054] First arc-shaped abutting part 2212;

[0055] Compression end 222;

[0056] First piezoelectric valve 23;

[0057] First arc-shaped groove 231;

[0058] Second arc-shaped abutting part 232;

[0059] Second piezoelectric valve 24;

[0060] Valve core 25;

[0061] Core seat 251;

[0062] Core body 252;

[0063] Reset member 253;

[0064] Adjusting member 30;

[0065] Second arc-shaped groove 31.

[0066] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0067] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0068] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0069] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0070] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0071] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and oblique above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical direction of the first feature below and oblique below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0072] The utility model embodiment direct below adjustment type double piezoelectric ceramic point glue valve device is described in detail below with reference to the drawings.

[0073] Referring to Figures 1 to 7 As shown in the figure, according to the direct below adjustment type double piezoelectric ceramic point glue valve device provided by the utility model embodiment, it comprises a point glue assembly 10, a valve body 20 and an adjusting part 30.

[0074] The glue dispensing assembly 10 comprises a glue tank 11, a glue outlet seat 12 and a nozzle 123, the glue outlet seat 12 is provided with a glue inlet 121 and a glue outlet 122 which are communicated with each other, the glue tank 11 is arranged on the glue outlet seat 12 and communicated with the glue inlet 121, and the nozzle 123 is arranged at the bottom of the glue outlet seat 12 and communicated with the glue outlet 122.

[0075] The glue dispensing assembly 10 is used for providing glue and completing glue dispensing, which comprises a glue tank 11, a glue outlet seat 12 and a nozzle 123, wherein the glue tank 11 is used for pre-storing glue, the glue outlet seat 12 is used for transmitting glue, and the nozzle 123 is used for dispensing glue, the glue tank 11 and the nozzle 123 are respectively communicated with the glue inlet 121 and the glue outlet 122 on the glue outlet seat 12, so that the glue provided by the glue tank 11 can be dispensed to the shell through the nozzle 123.

[0076] The valve body 20 comprises a valve shell 21, a transmission member 22, a first piezoelectric valve 23, a second piezoelectric valve 24 and a valve core 25, the valve shell 21 is arranged on the glue outlet seat 12 and communicated with the glue tank 11, the transmission member 22 is movably arranged in the valve shell 21 and comprises a transmission end 221 and a pressing end 222, the first piezoelectric valve 23 and the second piezoelectric valve 24 are arranged in the valve shell 21 and connected with the transmission end 221 in transmission, wherein the first piezoelectric valve 23 is used for driving the pressing end 222 to rotate downward, and the second piezoelectric valve 24 is used for driving the pressing end 222 to rotate upward, the valve core 25 is arranged in the valve shell 21 and configured to move downward to close the nozzle 123 when pressed by the pressing end 222, and move upward to open the nozzle 123 when not pressed by the pressing end 222.

[0077] The valve body 20 is used for closing or opening the glue dispensing assembly 10, which comprises a valve shell 21, a transmission member 22, a first piezoelectric valve 23, a second piezoelectric valve 24 and a valve core 25; the valve shell 21 is arranged on the glue outlet seat 12, the transmission member 22, the first piezoelectric valve 23, the second piezoelectric valve 24 and the valve core 25 are arranged in the valve shell 21, wherein the transmission member 22 is horizontally arranged in the valve shell 21, the left end of the transmission member 22 is a pressing end 222, and the right end of the transmission member 22 is a transmission end 221, the first piezoelectric valve 23 and the second piezoelectric valve 24 are arranged in the valve shell 21 and above the transmission end 221 and are in transmission connection with the transmission end 221, for driving the pressing end 222 to rotate downward and upward respectively, and the valve core 25 is arranged below the pressing end 222 and abuts against the pressing end 222, when the first piezoelectric valve 23 works, the pressing end 222 can be driven to rotate downward, the pressing end 222 will press the valve core 25 downward and drive the valve core 25 to move downward, after the valve core 25 moves downward, the nozzle 123 can be blocked to prevent the nozzle 123 from dispensing glue. When the second piezoelectric valve 24 works, the pressing end 222 can be driven to rotate upward, the pressing end 222 will move away from the pressing end 222, and the pressing end 222 will not be pressed, at this time, the valve core 25 will reset upward, and the nozzle 123 will be opened, and the nozzle 123 can continue to dispense glue.

[0078] The adjusting member 30 is vertically arranged in the valve shell 21 and abuts against the upper end surfaces of the first piezoelectric valve 23 and the second piezoelectric valve 24, for limiting the first piezoelectric valve 23 and the second piezoelectric valve 24.

[0079] The adjusting member 30 is arranged in the valve shell 21 and can abut against the upper end surfaces of the first piezoelectric valve 23 and the second piezoelectric valve 24, for adjusting the height of the piezoelectric valve to limit the piezoelectric valve, thus the direct downward adjusting mode has less wear and is more beneficial to use.

[0080] More specifically, when dispensing is needed, the second piezoelectric valve 24 is powered to work, under the pressure of the ceramic sheet of the second piezoelectric valve 24 on the transmission end 221 of the transmission member 22, the compression end 222 of the transmission member 22 is rotated upward, the compression end 222 is away from the valve core 25 and does not press the valve core 25, the valve core 25 is automatically reset upward and is away from the nozzle 123, so that the nozzle 123 is opened, and the glue dispensing assembly 10 can transmit glue to the nozzle 123 for dispensing; when dispensing is not needed, the first piezoelectric valve 23 is powered to work, under the pressure of the ceramic sheet of the first piezoelectric valve 23 on the transmission end 221 of the transmission member 22, the compression end 222 of the transmission member 22 is rotated downward, the compression end 222 transmits the pressure to the valve core 25, the valve core 25 is moved downward and inserted into the nozzle 123, so that the nozzle 123 is blocked to prevent the nozzle 123 from dispensing glue. In this process, the second piezoelectric valve 24 is arranged to rotate the transmission member upward, and the valve core 25 is reset without relying on the elasticity of the valve core 25 to lift the transmission rod, but cooperates with the second piezoelectric valve 24, so that the service life of the valve core 25 is longer, the opening of the nozzle 123 can be more accurately controlled, and the use is more beneficial. In addition, the adjusting member 30 is vertically arranged in the valve housing 21, the first piezoelectric valve 23 and the second piezoelectric valve 24 are vertically pressed by the adjusting member 30, the height of the first piezoelectric valve 23 and the second piezoelectric valve 24 is adjusted, and the first piezoelectric valve 23 and the second piezoelectric valve 24 are limited. The height adjustment method only needs to adjust the depth of the adjusting member 30 inserted into the valve housing 21, does not cause wear, and does not cause the piezoelectric valve to be deflected, so that the service life is longer and the use is more beneficial compared with the traditional horizontal pushing and lifting structure and the inclined surface abutting method.

[0081] The straight-down adjusting type double-piezoelectric-ceramic glue dispensing valve device has the advantages of simple structure, convenient use, accurate control of the opening and closing of the valve, convenient adjustment of the height of the piezoelectric valve, no wear, and favorable promotion and use.

[0082] Advantageously, in an embodiment of the present application, a connecting seat is arranged on the side wall of the valve housing 21 and connected to the middle part of the glue barrel 11.

[0083] The connecting seat is connected to the middle part of the glue barrel 11, so that the glue barrel 11 can be fixed on the glue outlet seat 12 to ensure that the glue barrel 11 can continuously deliver glue to the glue inlet 121.

[0084] Advantageously, in an embodiment of the present application, the glue outlet seat 12 is internally provided with a glue outlet channel 124, and the glue outlet channel 124 gradually extends downward from left to right.

[0085] The glue inlet 121 is arranged on the left end of the upper surface of the glue outlet base 12 and is in communication with the glue outlet channel 124; the glue outlet 122 is arranged on the middle of the lower surface of the glue outlet base 12 and is in communication with the nozzle 123.

[0086] Preferably, a liquid inlet 125 is arranged on the left side wall of the glue outlet base 12 adjacent to the glue inlet 121, and the liquid inlet 125 is in communication with the glue outlet channel 124.

[0087] That is to say, the height of the glue inlet 121 is higher than that of the glue outlet 122, and the glue inlet 121 is connected to the glue outlet 122 through the glue outlet channel 124, so that the glue in the glue barrel 11 can be smoothly sprayed from the nozzle 123 after entering the glue outlet base 12 through the glue inlet 121, thereby completing the glue dispensing process. In addition, the liquid inlet 125 is arranged on the side wall of the glue outlet base 12, so that when it is necessary to clean the application or replace different glue, water can be injected into the glue outlet base 12 through the liquid inlet 125 to flush the glue outlet base 12 and the nozzle 123, thereby avoiding the cleanliness of the glue outlet base 12 and facilitating the replacement of glue.

[0088] Advantageously, in another embodiment of the present application, the valve shell 21 comprises a lower shell 211 and a top cover 212;

[0089] The conducting member 22, the first piezoelectric valve 23, the second piezoelectric valve 24 and the valve core 25 are all arranged in the lower shell 211, and the lower end of the adjusting member 30 penetrates into the lower shell 211 and the upper end is located outside the lower shell 211;

[0090] The top cover 212 is detachably arranged on the top of the lower shell 211 and is used for covering the adjusting member 30.

[0091] The top cover 212 can be fixed on the upper end of the lower shell 211 by screws, which is convenient to disassemble and assemble and has good fixing effect. The adjusting member 30 can be hidden by the top cover 212, thereby avoiding the exposure of the adjusting member 30 and causing misoperation and other accidents.

[0092] Advantageously, in some embodiments of the present application, two threaded holes are arranged on the top surface of the lower shell 211;

[0093] The adjusting member 30 is provided with two screw rods, and the two screw rods are respectively in threaded connection with the two threaded holes and respectively abut against the first piezoelectric valve 23 and the second piezoelectric valve 24.

[0094] Further, an arc-shaped rotating part 2211 is arranged on the bottom surface of the driving end 221 of the conducting member 22, and the arc-shaped rotating part 2211 is in rotating cooperation with an arc-shaped groove in the lower shell 211.

[0095] The transmission end 221 of the conducting element 22 is provided with two first arc-shaped abutting portions 2212 on the top surface, which are respectively located on the left and right sides of the arc-shaped rotating portion 2211 and respectively abut against the first arc-shaped grooves 231 on the bottom surfaces of the first piezoelectric valve 23 and the second piezoelectric valve 24.

[0096] The conducting element 22 is connected with the lower shell 211 through the arc-shaped rotating portion 2211 on the bottom, so that the conducting element 22 can form a lever structure and be switched between different states by the compression of the first piezoelectric valve 23 and the second piezoelectric valve 24. Specifically, the two first arc-shaped abutting portions 2212 on the upper surface of the conducting element 22 are located on the two sides of the arc-shaped rotating portion 2211 and respectively abut against the first arc-shaped grooves 231 on the bottom surfaces of the first piezoelectric valve 23 and the second piezoelectric valve 24, so that the compression end 222 of the conducting element 22 can be rotated downward by the first piezoelectric valve 23, so as to control the valve core 25 to move downward to close the nozzle 123, and the compression end 222 can be rotated upward by the second piezoelectric valve 24, so that the valve core 25 can move upward to open the nozzle 123. In addition, the adjusting element 30 is a screw rod and is threadedly connected with the threaded hole on the lower shell 211, so that the length of the lower end of the adjusting element 30 extending into the lower shell 211 can be adjusted very conveniently. The shorter the length of the lower end of the adjusting element 30 extending into the lower shell 211, the higher the first piezoelectric valve 23 and the second piezoelectric valve 24, and the longer the movement stroke of the ceramic sheet. Under the driving of the second piezoelectric valve 24, the rotating amplitude of the conducting element 22 is larger, and the upward amplitude of the valve core 25 is larger, so that the gap between the valve core 25 and the inner wall of the nozzle 123 is larger, and the glue output of the nozzle 123 is larger. Conversely, the longer the length of the lower end of the adjusting element 30 extending into the lower shell 211, the lower the first piezoelectric valve 23 and the second piezoelectric valve 24, and the longer the movement stroke of the ceramic sheet. Under the driving of the second piezoelectric valve 24, the rotating amplitude of the conducting element 22 is smaller, and the upward amplitude of the valve core 25 is smaller, so that the gap between the valve core 25 and the inner wall of the nozzle 123 is smaller, and the glue output of the nozzle 123 is smaller. In this way, the adjusting element 30 adopts the above structure, so that the movement amplitudes of the conducting element 22 and the valve core 25 can be adjusted according to the use requirements, the size of the glue output is adjusted, and the use is facilitated.

[0097] Advantageously, in some embodiments of the utility model, the top end of the first piezoelectric valve 23 and the second piezoelectric valve 24 is provided with the second arc-shaped abutting portion 232;

[0098] The lower end of the two adjusting elements 30 is provided with the second arc-shaped groove 31, and the two second arc-shaped abutting portions 232 are respectively clamped in the two second arc-shaped grooves 31.

[0099] Thus, by arranging the first arc-shaped abutting portion 2212 on the first piezoelectric valve 23 and the second piezoelectric valve 24, and further in cooperation with the second arc-shaped slot 31 at the bottom of the adjusting member 30, the adjusting member 30 can be more closely abutted with the first piezoelectric valve 23 and the second piezoelectric valve 24, thereby limiting the stroke of the ceramic sheet of the first piezoelectric valve 23 and the second piezoelectric valve 24, and at the same time, the straight-down type adjusting mode can also avoid the deflection of the first piezoelectric valve 23 and the second piezoelectric valve 24.

[0100] Advantageously, in some other embodiments of the utility model, the valve core 25 comprises a core seat 251, a core body 252 and a reset member 253; the core seat 251 is arranged in the lower shell 211, a center hole is arranged on the core seat 251, and the center hole extends in the vertical direction; the core body 252 is movably arranged in the center hole, the lower end is arranged in the nozzle 123, and the upper end is abutted with the compression end 222 of the transmission member 22; the reset member 253 is arranged at the top of the core seat 251 and is sleeved on the outer side of the core body 252.

[0101] When the core body 252 is compressed by the compression end 222, the compression end 222 can force the core body 252 to move downward to close the nozzle 123; when the core body 252 is not compressed by the compression end 222, the reset member 253 can force the core body 252 to move upward to open the nozzle 123.

[0102] The core seat 251 is arranged in the lower shell 211 and is arranged opposite to the nozzle 123, so that the core body 252 arranged in the center hole can be arranged in the nozzle 123, so as to close the nozzle 123 by the core body 252. Specifically, in the process of use, when the glue dispensing is finished, the transmission end 221 of the transmission rod is compressed by the first piezoelectric valve 23, and the compression end 222 is forced to rotate downward, at this time, the compression end 222 will compress the valve core 25, so as to drive the valve core 25 to move downward to close the nozzle 123; when the glue dispensing is finished, the first piezoelectric valve 23 stops working, and the second piezoelectric valve 24 will compress the transmission end 221, and the compression end 222 is forced to rotate upward, at this time, the compression end 222 will not compress the valve core 25, then the reset member 253 will drive the valve core 25 to move upward, so as to open the nozzle 123 by the valve core 25, so as to glue the replaced shell. The reset member 253 is a spring, which can automatically drive the valve core 25 to reset, and is convenient to use.

[0103] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0104] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the application concept of the present application are included in the patent protection scope of the present application.

Claims

1. A direct down-adjustable bimorph dispensing valve device, characterized by, The application relates to a glue dispensing device. The glue dispensing device comprises a glue dispensing assembly, a valve body and an adjusting member. The glue dispensing assembly comprises a glue tank, a glue outlet seat and a nozzle. The glue outlet seat is provided with an inlet and an outlet which are communicated with each other.

2. The direct down regulating bimorph dispensing valve apparatus of claim 1, wherein, The glue tank is arranged on the glue outlet seat and communicated with the inlet.

3. The direct down-adjustable bimorph dispensing valve apparatus according to claim 1, wherein, The nozzle is arranged on the bottom of the glue outlet seat and communicated with the outlet. The valve body comprises a valve shell, a transmission element, a first piezoelectric valve, a second piezoelectric valve and a valve core.

4. The direct down-adjustable bimorph dispensing valve apparatus according to claim 3, wherein, The valve shell is arranged on the glue outlet seat and communicated with the glue tank.

5. The direct down-adjustable bimorph dispensing valve apparatus according to claim 3, wherein, The transmission element is movably arranged in the valve shell and comprises a transmission end and a pressing end. The first piezoelectric valve and the second piezoelectric valve are arranged in the valve shell and connected with the transmission end. The first piezoelectric valve is used for driving the pressing end to rotate downward, and the second piezoelectric valve is used for driving the pressing end to rotate upward.

6. The direct down-adjustable bimorph dispensing valve apparatus according to claim 5, wherein, The valve core is arranged in the valve shell and can move downward to close the nozzle when pressed by the pressing end, and can move upward to open the nozzle when not pressed by the pressing end. The adjusting member is vertically arranged in the valve shell and abuts against the upper end faces of the first piezoelectric valve and the second piezoelectric valve, and is used for limiting the first piezoelectric valve and the second piezoelectric valve.

7. The direct down-adjustable bimorph dispensing valve apparatus according to claim 6, wherein, The connecting seat is arranged on the side wall of the valve shell and connected with the middle part of the glue tank. The glue outlet seat is internally provided with a glue outlet channel which gradually extends downward from left to right.

8. The direct down-adjustable bimorph dispensing valve apparatus according to claim 7, wherein, The inlet is arranged on the left end of the upper surface of the glue outlet seat and communicated with the glue outlet channel. The outlet is arranged on the middle part of the lower surface of the glue outlet seat and communicated with the nozzle.

9. The direct down-adjustable bimorph dispensing valve apparatus according to claim 8, wherein, The liquid inlet is arranged on the left side wall of the glue outlet seat and communicated with the glue outlet channel. The valve shell comprises a lower shell and a top cover. The transmission element, the first piezoelectric valve, the second piezoelectric valve and the valve core are arranged in the lower shell. The lower end of the adjusting member penetrates into the lower shell and the upper end is located outside the lower shell. The top cover is detachably arranged on the top of the lower shell and used for covering the adjusting member. The top surface of the lower shell is provided with two threaded holes. The adjusting member is provided with two screw rods which are respectively connected with the two threaded holes and abut against the first piezoelectric valve and the second piezoelectric valve. The transmission end of the transmission element is provided with an arc-shaped rotating part on the bottom surface. The transmission end of the transmission element is provided with two first arc-shaped abutting parts on the top surface. The top ends of the first piezoelectric valve and the second piezoelectric valve are provided with second arc-shaped abutting parts. The lower ends of the two adjusting members are provided with second arc-shaped grooves. The valve core comprises a core seat, a core body and a reset member. The core seat is arranged in the lower shell, and a center hole is arranged on the core seat and extends in a vertical direction; The core body is movably arranged in the center hole, and a lower end penetrates into the nozzle, and an upper end abuts against the pressing end of the conducting element; The reset element is arranged at a top end of the core seat and is sleeved on the core body; When the core body is pressed by the pressing end, the pressing end can force the core body to move downward to close the nozzle; When the core body is not pressed by the pressing end, the reset element can force the core body to move upward to open the nozzle.

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