Piezoelectric valve capable of spraying multiple kinds of wide-range fluid containing particles

Abstract

The utility model relates to the technical field of piezoelectric valves, in particular to a piezoelectric valve capable of spraying various wide-range fluid containing particles. Comprising a shell, a self-locking plug, a mounting head, a nozzle mechanism, a flow guide mechanism and an auxiliary mechanism, and the auxiliary mechanism comprises a quick-release locking support, a quick-release bolt, a firing pin seat, a lower firing pin, a lower spring, a spring ring, a gasket, an upper spring seat, an upper firing pin, an upper spring, a piezoelectric stack, an upper wedge block, a lower wedge block, a heating device, a nozzle device and a lever device. By arranging the quick-release locking support and the quick-release bolt, only one bolt is needed for disassembly and assembly, quickness and convenience are achieved, the firing pin and the nozzle device achieve extremely high concentricity through the split firing pin structure, glue spraying is more stable, glue point diameter repeatability is higher, zero debugging can be achieved, multiple kinds of fluid with wide-range viscosity and containing particles can be sprayed, and the application range is wide. Therefore, the problems that an existing piezoelectric valve is complex to disassemble and assemble during cleaning, a nozzle is tedious and troublesome to debug, the viscosity range of sprayed glue is narrow, and use is inconvenient can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to piezoelectric valve technical field especially relates to a kind of piezoelectric valve of a variety of wide range of particle-containing fluid can be sprayed. BACKGROUND

[0002] Piezoelectric valve is simple in structure, control precision is high, it is suitable for point glue frequency high and the application scene of small glue output.It is especially suitable for the occasion needing high-precision control, such as precision point glue, and it is used very frequently in current automatic point glue equipment.

[0003] Current piezoelectric valve is complex when cleaning, nozzle debugging is tedious and troublesome, the viscosity range of glue water sprayed is also relatively narrow, and it is inconvenient to use. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of piezoelectric valve of a variety of wide range of particle-containing fluid can be sprayed, to solve the problem that current piezoelectric valve is complex when cleaning, nozzle debugging is tedious and troublesome, the viscosity range of glue water sprayed is also relatively narrow, and it is inconvenient to use.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of piezoelectric valve of a variety of wide range of particle-containing fluid can be sprayed, including shell, two self-locking plugs are provided on the shell upper side, bottom is provided with mounting head and nozzle mechanism, the side of the mounting head is provided with flow guide mechanism, and it further includes auxiliary mechanism;

[0006] The auxiliary mechanism includes quick-release locking bracket, quick-release bolt, striker seat, lower striker, lower spring, universal seal ring, gasket, upper spring seat, upper striker, upper spring, piezoelectric stack, upper wedge, lower wedge, heating device, nozzle device and lever device, the quick-release locking bracket is fixed on the mounting head of the shell bottom by the quick-release bolt, the striker seat is arranged in the shell interior, the lower striker is arranged in the striker seat, the lower spring is sleeved on the lower striker, the striker seat is provided with the universal seal ring and the gasket, the upper spring seat is arranged above the lower striker, the upper spring seat is provided with guide column, the upper striker is arranged on the side of the upper spring seat and is slidably connected with the guide column, the upper spring is sleeved on the upper striker and located in the upper spring seat, the piezoelectric stack is arranged in the shell, the piezoelectric stack top side is respectively provided with the lower wedge and the upper wedge, the heating device is arranged at the shell bottom, the nozzle device is arranged at the shell bottom, and the lever device is arranged at the shell side close to the upper striker;

[0007] The heating device is inlaidly installed in the cavity of the shell.

[0008] The shell is further provided with a rubber tube holder, and a rubber tube is inserted into the rubber tube holder, and the outlet of the rubber tube is screwed on the threaded port of the flow guide mechanism.

[0009] The nozzle device comprises a nozzle cap and a nozzle, the nozzle cap is arranged on the mounting head, and the nozzle is arranged at the bottom of the nozzle cap.

[0010] The lever device comprises a lever fulcrum column, a triangular block and a lever, the lever fulcrum column is arranged inside the shell and close to the upper striker, the triangular block is arranged on the piezoelectric stack close to the lever fulcrum column, and the lever is rotationally connected with the lever fulcrum column and the triangular block respectively.

[0011] The flow guide mechanism comprises a fluid groove fixing frame, a fluid groove and a glue sealing bolt, the fluid groove fixing frame is mounted on the mounting head, the fluid groove adopts an extremely short oblique body structure and is arranged in the fluid groove fixing frame, the threaded port of the fluid groove is screwed with the rubber tube, and the glue sealing bolt is arranged on one side of the fluid groove fixing frame.

[0012] The piezoelectric valve of the utility model can spray a plurality of kinds of wide-range particle-containing fluid, the quick-release locking support and the quick-release bolt are arranged, the mounting head can be quickly fixed and disassembled, only one bolt is needed for disassembly, the piezoelectric valve is more convenient and time-saving than the traditional mode, further, the split striker structure is adopted, the striker seat and the cavity of the mounting head are matched, the striker and the nozzle device can reach high concentricity, the matching precision is higher than that of the traditional mode, the glue spraying is more stable, the glue point diameter repeatability is also higher, the piezoelectric valve with the structure can be debugged, can spray a plurality of kinds of wide-range viscosity and particle-containing fluid, and the problems that the existing piezoelectric valve is complex to disassemble and assemble during cleaning, the nozzle is troublesome to debug, the viscosity range of the sprayed glue is relatively narrow and inconvenient to use can be solved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced.

[0014] Figure 1 It is the overall structure schematic view of the piezoelectric valve of the utility model.

[0015] Figure 2 It is the installation position schematic view of the piezoelectric stack of the utility model.

[0016] Figure 3 It is the structure schematic view of the lower striker of the utility model.

[0017] Figure 4 Figure 2 is a structural schematic diagram of the upper spring seat of the utility model.

[0018] In the figure: 101 - shell, 102 - self-locking plug, 103 - mounting head, 104 - quick-release locking support, 105 - quick-release bolt, 106 - striker seat, 107 - lower striker, 108 - lower spring, 109 - universal seal ring, 110 - gasket, 111 - upper spring seat, 112 - upper striker, 113 - upper spring, 114 - piezoelectric stack, 115 - upper wedge block, 116 - lower wedge block, 117 - heating device, 118 - rubber tube holder, 119 - rubber tube, 120 - nozzle cap, 121 - nozzle, 122 - lever fulcrum column, 123 - triangular block, 124 - lever, 125 - fluid tank fixing frame, 126 - fluid tank, 127 - glue sealing bolt, 128 - guide column. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0020] As Figures 1 to 4 shown, wherein Figure 1 is the overall structure schematic diagram of the piezoelectric valve capable of spraying a wide range of particle-containing fluids of various types, Figure 2 is the installation position schematic diagram of the piezoelectric stack 114, Figure 3 is the structure schematic diagram of the lower striker 107, Figure 4 is the structure schematic diagram of the upper spring seat 111, the utility model provides a piezoelectric valve capable of spraying a wide range of particle-containing fluids of various types: including shell 101, self-locking plug 102, mounting head 103, nozzle mechanism, flow guide mechanism and auxiliary mechanism, the auxiliary mechanism includes quick-release locking support 104, quick-release bolt 105, striker seat 106, lower striker 107, lower spring 108, universal seal ring 109, gasket 110, upper spring seat 111, upper striker 112, upper spring 113, piezoelectric stack 114, upper wedge block 115, lower wedge block 116, heating device 117, nozzle device and lever device, the nozzle device includes nozzle cap 120 and nozzle 121, the lever device includes lever fulcrum column 122, triangular block 123 and lever 124, the flow guide mechanism includes fluid tank fixing frame 125, fluid tank 126 and glue sealing bolt 127. Through the foregoing scheme, the problems that the existing piezoelectric valve is complex to disassemble and assemble during cleaning, the nozzle is troublesome to debug, the viscosity range of the sprayed glue is relatively narrow and use is inconvenient can be solved. It can be understood that the foregoing scheme can realize convenient disassembly, and can spray a wide range of viscosity and particle-containing fluids of various types.

[0021] In the embodiment, the shell 101 is provided with two self-locking plugs 102 on the upper side, and is provided with a mounting head 103 and a nozzle mechanism on the bottom. The mounting head 103 is provided with a flow guide mechanism on one side. The mounting head 103 facilitates the arrangement of the nozzle mechanism, and the flow guide mechanism is used for guiding the glue flow.

[0022] The quick release locking support 104 is fixed on the mounting head 103 at the bottom of the shell 101 through the quick release bolt 105, the striker seat 106 is arranged inside the shell 101, the lower striker 107 is arranged in the striker seat 106, the lower spring 108 is sleeved on the lower striker 107, the striker seat 106 is provided with the pan plug ring 109 and the gasket 110, the upper spring seat 111 is arranged above the lower striker 107, the upper spring seat 111 is provided with a guide column 128, the upper striker 112 is arranged on one side of the upper spring seat 111 and is in sliding connection with the guide column 128, the upper spring 113 is sleeved on the upper striker 112 and is located in the upper spring seat 111, the piezoelectric stack 114 is arranged in the shell 101, the piezoelectric stack 114 is provided with the lower wedge block 116 and the upper wedge block 115 on the top side respectively, the heating device 117 is arranged at the bottom of the shell 101, the nozzle device is arranged at the bottom of the shell 101, and the lever device is arranged on one side of the shell 101 close to the upper striker 112; after the quick release locking support 104 is clamped on the matching parts of the shell 101 and the mounting head 103 respectively, the quick release bolt 105 can be directly installed on the shell 101 for limiting and fixing, a wave spring sheet is sleeved on the contact surface between the quick release bolt 105 and the quick release locking support 104, the striker seat 106 can be directly arranged in the mounting cavity of the shell 101 and can realize the sleeving of the lower striker 107, the striker seat 106 is provided with the pan plug ring 109 and the gasket 110, the gasket 110 is used for abutting and limiting the lower spring 108, the upper spring seat 111 can be directly installed in the mounting cavity of the shell 101 and is provided with a guide column 128, which facilitates the sliding guidance of the upper striker 112, the upper spring 113 is sleeved on the upper striker 112, the upper spring 113 has an external threaded end at the top end, which facilitates the connection and cooperation of the lever device through a nut, the piezoelectric stack 114 is arranged in the mounting cavity inside the shell 101 and is provided with the lower wedge block 116 and the upper wedge block 115 on the top side respectively, the upper wedge block 115 is locked and fixed through bolts on both sides, the shell 101 is also provided with heat dissipation holes, and the nozzle device is used for glue spraying.

[0023] The heating device 117 is embedded in the cavity of the shell 101. The heating device 117 is composed of a heating block, a heating block cover and a heating block inductor. The heating block is embedded in the cavity of the mounting head 103 closest to the bottom of the shell 101 in an integrated manner, which avoids the problem of easy damage of the traditional external heating block and eliminates the cumbersome installation process.

[0024] Secondly, the shell 101 is also provided with a rubber tube holder 118, and the rubber tube 119 is inserted into the rubber tube holder 118. The outlet of the rubber tube 119 is screwed on the threaded port of the flow guide mechanism.

[0025] Then, the nozzle cap 120 is arranged on the mounting head 103, and the nozzle 121 is arranged at the bottom of the nozzle cap 120. The upper cavity port of the nozzle 121 cooperates with the semicircular head at the bottom of the lower hammer 107.

[0026] Further, the lever fulcrum column 122 is arranged inside the shell 101 and close to the upper hammer 112. The triangular block 123 is arranged on the piezoelectric stack 114 close to the lever fulcrum column 122. The lever 124 is rotatably connected with the lever fulcrum column 122 and the triangular block 123, respectively. The end portion away from the triangular block 123 is locked on the upper hammer 112 by a nut. The lever fulcrum column 122 is directly installed in the mounting hole of the shell 101, and the triangular block 123 is also directly installed in the mounting port of the shell 101. The lever fulcrum column 122 can be directly connected with the arc-shaped groove on the lever 124, and the arc-shaped portion of the triangular block 123 is connected with the arc-shaped groove on the lever 124, so as to realize the rotary limiting of the lever 124. The other end portion of the lever 124 is fixed on the upper hammer 112 by a nut and abuts against the top of the upper spring 113.

[0027] Finally, the fluid tank fixing frame 125 is installed on the mounting head 103. The fluid tank 126 adopts an extremely short oblique body structure and is arranged in the fluid tank fixing frame 125. The threaded port of the fluid tank 126 is screwed with the rubber tube 119. The glue sealing bolt 127 is arranged on one side of the fluid tank fixing frame 125. The fluid tank fixing frame 125 is inserted into the mounting head 103. After the nozzle cap 120 is screwed on the mounting head 103, the fluid tank fixing frame 125 can be limited. The fluid tank 126 adopts an extremely short oblique body structure. The channel length of the fluid tank 126 is shorter than that of the traditional one, which saves glue and reduces the retention rate of glue.

[0028] When the piezoelectric valve is used to solve the problems of complex disassembly and assembly, complicated nozzle debugging, narrow viscosity range of sprayed glue and inconvenience in use during cleaning of the existing piezoelectric valve, the quick disassembly locking support 104 and the quick disassembly bolt 105 are arranged to realize quick fixing and disassembly of the mounting head 103, and only one bolt is needed for disassembly and assembly, which is faster, more convenient and time-saving than the traditional mode, further, the structure of the split striker is adopted, the striker seat 106 and the cavity of the mounting head 103 are matched, the lower striker 107 and the nozzle 121 can reach a very high concentricity, the matching precision is higher than that of the traditional mode, the glue spraying is more stable, the glue point diameter repeatability is also higher, the piezoelectric valve with the structure can be 0 debug, can spray various kinds of fluid with wide range of viscosity and particles, and can solve the problems of complex disassembly and assembly, complicated nozzle debugging, narrow viscosity range of sprayed glue and inconvenience in use during cleaning of the existing piezoelectric valve.

[0029] The above only discloses one or more preferred embodiments of the application, and cannot limit the scope of the right of the application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope covered by the application.

Claims

1. A piezoelectric valve capable of spraying a wide range of particle-containing fluids of multiple types, comprising a shell, two self-locking plugs arranged on the upper side of the shell, a mounting head and a nozzle mechanism arranged on the bottom of the shell, and a flow guide mechanism arranged on one side of the mounting head, characterized in that: it further comprises an auxiliary mechanism; the auxiliary mechanism comprises a quick-release locking bracket, a quick-release bolt, a striker seat, a lower striker, a lower spring, a universal seal ring, a gasket, an upper spring seat, an upper striker, an upper spring, a piezoelectric stack, an upper wedge, a lower wedge, a heating device, a nozzle device, and a lever device, the quick-release locking bracket is fixed on the mounting head at the bottom of the shell by the quick-release bolt, the striker seat is arranged inside the shell, the lower striker is arranged in the striker seat, the lower spring is sleeved on the lower striker, the universal seal ring and the gasket are arranged in the striker seat, the upper spring seat is arranged above the lower striker, a guide column is arranged on the upper spring seat, the upper striker is arranged on one side of the upper spring seat and is in sliding connection with the guide column, the upper spring is sleeved on the upper striker and located in the upper spring seat, the piezoelectric stack is arranged in the shell, the lower wedge and the upper wedge are respectively arranged on the top side of the piezoelectric stack, the heating device is arranged at the bottom of the shell, the nozzle device is arranged at the bottom of the shell, and the lever device is arranged on one side of the shell close to the upper striker. The heating device is embeddedly installed in the cavity of the shell.

2. The piezoelectric valve capable of spraying a wide range of particle-containing fluids of multiple types according to claim 1, characterized in that: a rubber tube holder is further arranged on the shell, a rubber tube is inserted and arranged on the rubber tube holder, and the outlet of the rubber tube is screwed on the threaded port of the flow guide mechanism.

3. The piezoelectric valve capable of spraying a wide range of particle-containing fluids of multiple types according to claim 1, characterized in that: the nozzle device comprises a nozzle cap and a nozzle, the nozzle cap is arranged on the mounting head, and the nozzle is arranged at the bottom of the nozzle cap.

4. The piezoelectric valve capable of spraying a wide range of particle-containing fluids of multiple types according to claim 1, characterized in that: the lever device comprises a lever fulcrum column, a triangular block, and a lever, the lever fulcrum column is arranged inside the shell and close to the upper striker, the triangular block is arranged on one side of the piezoelectric stack close to the lever fulcrum column, the lever is in rotational connection with the lever fulcrum column and the triangular block, and the end of the lever away from the triangular block is locked on the upper striker by a nut. The flow guide mechanism comprises a fluid groove fixing bracket, a fluid groove, and a glue sealing bolt, the fluid groove fixing bracket is mounted on the mounting head, the fluid groove adopts an extremely short oblique body structure and is arranged in the fluid groove fixing bracket, the threaded port of the fluid groove is screwed with the rubber tube, and the glue sealing bolt is arranged on one side of the fluid groove fixing bracket. ​ ​ ​ ​ 5. The piezoelectric valve for jetting a wide range of multi-component particulate fluid according to claim 2, wherein : ​

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