Spray expanding device for piezoelectric injection valve

Abstract

The utility model discloses a spray expansion device for a piezoelectric injection valve, and relates to the technical field of piezoelectric injection valves. Comprising a piezoelectric injection valve body, a connecting base is fixed to the lower end of the piezoelectric injection valve body, a nozzle firstly penetrates through the interior of a positioning support, a threaded sleeve on the nozzle is in threaded connection with a threaded pipe at the lower end of a corrugated pipe, the nozzle is installed, and then a push block shrinks through a second electric push rod; the two sets of sliding blocks pull the movable rods to be opened and closed on the sliding rail support through the push blocks, the sliding blocks drive the clamping rings on the sliding rods to be opened and closed, the clamping rings are attached to the positions between the limiting rings on the outer wall of the nozzle, and therefore the installed nozzle is locked, looseness is avoided, and the clamping rings are locked in a threaded connection and electric push rod driving mode. And the mounting and dismounting processes of the nozzles are simplified, the proper nozzles can be conveniently selected for use according to requirements, and the adaptability of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to piezoelectric injection valve technical field, concretely is a kind of spray extension device for piezoelectric injection valve. BACKGROUND

[0002] In modern industrial production, piezoelectric injection valve is widely used in various spraying, painting and precision humidification and other fields.Piezoelectric injection valve realizes the accurate injection of liquid by piezoelectric effect, has the advantages of fast injection speed, high control precision, adjustable spray shape and the like.

[0003] Reference patent (publication number: CN105983506B;Publication date: 2018-05-18) discloses a kind of piezoelectric injection valve and injection device, belongs to point gum device field, the piezoelectric injection valve includes piezoelectric drive part, piezoelectric drive part includes piezoelectric ceramic actuator and push rod, wherein: piezoelectric ceramic actuator includes fixedly arranged substrate and the first piezoelectric ceramic cantilever beam and second piezoelectric ceramic cantilever beam capable of generating d15 shear mode deformation downward from the substrate, first and second piezoelectric ceramic cantilever beam is arranged along the substrate length direction;The end of first and second piezoelectric ceramic cantilever beam is connected with the flexible V-shaped frame capable of converting the d15 shear mode deformation of first and second piezoelectric ceramic cantilever beam into vertical motion trajectory, the lower part of flexible V-shaped frame is fixedly connected with the push rod.The piezoelectric injection valve designed in the application has the characteristics of compact structure, small size, high output force and the like compared with prior art.

[0004] Based on the above patent, in the existing piezoelectric injection valve spray expansion device, the installation and locking mode of nozzle is often more complex, and disassembly is inconvenient, which limits the flexibility of users to quickly replace the nozzle according to actual needs, and the control of spray flow, the traditional device often lacks accurate adjustment mechanism, it is difficult to meet the specific needs of different application scenarios for spray amount, and the fixity of spray angle also limits the coverage of spray, so that the device is low in efficiency when dealing with workpiece surfaces of different shapes and angles, therefore, the utility model provides a kind of spray expansion device for piezoelectric injection valve. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of spray expansion device for piezoelectric injection valve, solves the problems that in the existing piezoelectric injection valve spray expansion device, the installation and locking mode of nozzle is often more complex, and disassembly is inconvenient, which limits the flexibility of users to quickly replace the nozzle according to actual needs, and the control of spray flow, the traditional device often lacks accurate adjustment mechanism, it is difficult to meet the specific needs of different application scenarios for spray amount, and the fixity of spray angle also limits the coverage of spray, so that the device is low in efficiency when dealing with workpiece surfaces of different shapes and angles.

[0006] In order to achieve the above object, the utility model discloses a spray extension device for piezoelectric injection valve through the following technical scheme realizes: a kind of for piezoelectric injection valve, the lower end of the piezoelectric injection valve body is fixed with connecting seat, adjusting mechanism for being used to adjust the spray of piezoelectric injection valve is provided on the connecting seat, adjusting mechanism includes:

[0007] Control component, including the feed pipe fixed in the inside of connecting seat, the inside of the feed pipe is provided with the control plate connected by screw component penetration;

[0008] Mounting assembly, including the positioning support connected by push assembly in the inner wall of connecting seat, the inside of the positioning support is slidably connected with slide rod, one end of the slide rod is fixed with clamping ring in the inside of positioning support, the lower end of the feed pipe is fixed with bellow, the lower end of the bellow is provided with the nozzle connected by rotating assembly.

[0009] Preferably, the screw component includes the control housing fixed in the inside penetration of feed pipe, one end of the inside of the control housing is rotatably connected with screw rod, the control plate is in the inner wall of control housing, and the control plate is screw-connected with screw rod.

[0010] Preferably, the push assembly includes the fixed plate fixed in the inner wall of connecting seat, the front end of the fixed plate is provided with the adjusting plate rotatably connected by rotating shaft, the positioning support is in the lower end of the adjusting plate, the adjusting plate is fixedly connected with positioning support, the inner wall of the adjusting plate is provided with the first electric push rod rotatably connected by rotating shaft, the base of the first electric push rod is rotatably connected with the inner wall of connecting seat by rotating shaft.

[0011] Preferably, the side wall of the positioning support is fixed with the slide rail support, the inside of the slide rail support is slidably connected with the sliding block, the side wall of the sliding block extends to the other side of the slide rail support and is fixedly connected with the slide rod, the front end of the slide rail support is fixed with the support plate, the inside of the upper end of the support plate is fixed with the second electric push rod, the telescopic end of the second electric push rod is fixed with the push block, the both sides of the push block are provided with the movable rod rotatably connected by rotating shaft, the other end of the movable rod is rotatably connected with the sliding block by rotating shaft.

[0012] Preferably, the rotating assembly includes the threaded tube fixed in the lower end of bellow, the inside of the threaded tube is screw-connected with threaded sleeve, and the nozzle is in the lower end of threaded sleeve.

[0013] Preferably, the outer wall of the nozzle is fixed with a pair of limit rings, and the clamping ring is inside the limit ring.

[0014] Beneficial effects

[0015] The utility model provides a kind of spray extension device for piezoelectric injection valve.Compared with prior art, it has the following beneficial effects:

[0016] First, the utility model is provided with the nozzle first through the inside of positioning support, the threaded sleeve on the nozzle is connected with the threaded tube of the lower end of corrugated pipe by screwing, the installation of nozzle is realized, then the push block is retracted by the second electric push rod, two groups of sliding blocks are opened and closed on the slide rail support by the push block pulling movable rod, the clamping ring on the slide bar is opened and closed by the sliding block, the clamping ring is attached between the limiting ring of nozzle outer wall, so that the installed nozzle is locked, to avoid loosening, and the clamping ring locking mode of screw connection and electric push rod driving is adopted, the installation and disassembly process of nozzle are simplified, it is convenient to select suitable nozzle for use according to requirements, improve the adaptability of equipment.

[0017] Second, the utility model realizes the sliding of control plate in the inside of control shell by the rotation of screw rod, so as to adjust the flow in the inside of feed pipe, and then change the flow area in the feed pipe, realize the control of spray flow, meet the specific demand of spray amount in different application scenarios, improve the accuracy and consistency of spray, so as to adjustably use the spray expansion, then the adjusting plate is turned to the front end of fixed plate by rotating shaft, so as to adjust the angle of positioning support at the lower end of adjusting plate, the installed nozzle can be adjusted and controlled by corrugated pipe at the lower end of feed pipe, so that spray can cover more extensive area or accurate spray for specific area, for different shape and angle workpiece surface spraying, can adapt to different shape and angle workpiece surface, improve the versatility and flexibility of equipment, so as to expand the use of position of spray. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of the utility model;

[0019] Figure 2 It is the sectional structure schematic diagram of the utility model's connecting seat;

[0020] Figure 3 It is the utility model's Figure 2 It is the enlarged connecting structure schematic diagram of A place in the utility model;

[0021] Figure 4 It is the inside structure schematic diagram of the utility model's positioning support;

[0022] Figure 5 It is the nozzle connecting structure schematic diagram of the utility model.

[0023] In the figure: 1, piezoelectric spray valve body; 2, connecting seat; 201, feed pipe; 202, control housing; 203, screw; 204, control plate; 3, fixed plate; 301, adjusting plate; 302, first electric push rod; 4, positioning support; 401, sliding rod; 402, clamping ring; 5, corrugated pipe; 501, threaded pipe; 502, threaded sleeve; 503, nozzle; 504, limiting ring; 6, slide rail support; 601, support plate; 602, second electric push rod; 603, push block; 604, movable rod; 605, sliding block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of spray extension device for piezoelectric spray valve, including piezoelectric spray valve body 1, the lower end of piezoelectric spray valve body 1 is fixed with connecting seat 2, adjusting mechanism for being used to adjust piezoelectric spray valve spray is provided on connecting seat 2, adjusting mechanism includes:

[0026] Control assembly, including the feed pipe 201 fixed in the inside of connecting seat 2, the inside of feed pipe 201 is provided with control plate 204 by screw component connection and is penetrated;

[0027] Mounting assembly, including the positioning support 4 connected by push assembly in the inner wall of connecting seat 2, the inside of positioning support 4 is slidably connected with sliding rod 401, one end of sliding rod 401 is fixed with clamping ring 402 in the inner side of positioning support 4, the lower end of feed pipe 201 is fixed with corrugated pipe 5, the lower end of corrugated pipe 5 is provided with nozzle 503 by rotating assembly connection.

[0028] In preferred embodiments, screw component includes control housing 202 fixed in the inside of feed pipe 201, one end of control housing 202 is rotatably connected with screw 203, control plate 204 is located in the inner wall of control housing 202, and control plate 204 is screw connected with screw 203, by the rotation of screw 203, control plate 204 is slid in the inside of control housing 202, to adjust the flow in the inside of feed pipe 201, to change the flow area in the inside of feed pipe 201, to realize the control of spray flow, to meet the specific demand of spray amount in different application scenarios, to improve the accuracy and consistency of spray, to adjust the use of spray extension amount.

[0029] In the preferred implementation, the push assembly includes a fixed plate 3 fixed on the inner wall of the connecting seat 2, the front end of the fixed plate 3 is provided with an adjusting plate 301 connected by a rotating shaft, a positioning support 4 is located at the lower end of the adjusting plate 301, the adjusting plate 301 is fixedly connected with the positioning support 4, and the inner wall of the adjusting plate 301 is provided with a first electric push rod 302 connected by a rotating shaft, the base of the first electric push rod 302 is rotatably connected with the inner wall of the connecting seat 2, and the first electric push rod 302 is arranged to push the adjusting plate 301 when being stretched or retracted, so that the adjusting plate 301 is rotated at the front end of the fixed plate 3 through the rotating shaft, thereby adjusting the angle of the positioning support 4 at the lower end of the adjusting plate 301, and the installed nozzle 503 can be adjusted and controlled through the corrugated pipe 5 at the lower end of the feed pipe 201, so that the spraying can cover a wider area or accurately spray a specific area, and the spraying can be applied to different shapes and angles of workpiece surfaces, thereby improving the versatility and flexibility of the equipment, and expanding the use of the spraying position.

[0030] In the preferred implementation, the side wall of the positioning support 4 is fixed with a sliding rail support 6, the sliding rail support 6 is slidably connected with a sliding block 605, the side wall of the sliding block 605 extends to the other side of the sliding rail support 6 and is fixedly connected with a sliding rod 401, the front end of the sliding rail support 6 is fixedly connected with a supporting plate 601, the inner wall of the upper end of the supporting plate 601 is fixedly connected with a second electric push rod 602, the telescopic end of the second electric push rod 602 is fixedly connected with a push block 603, the two sides of the push block 603 are provided with movable rods 604 connected by rotating shafts, the other ends of the movable rods 604 are rotatably connected with the sliding block 605, the outer wall of the nozzle 503 is fixedly connected with a pair of limiting rings 504, and the clamping ring 402 is located on the inner side of the limiting ring 504. The rotating assembly includes a threaded pipe 501 fixedly connected with the lower end of the corrugated pipe 5, and the threaded pipe 501 is threadedly connected with a threaded sleeve 502 in the interior thereof, and the nozzle 503 is located at the lower end of the threaded sleeve 502. The nozzle 503 is first arranged to pass through the interior of the positioning support 4, the threaded sleeve 502 on the nozzle 503 is threadedly connected with the threaded pipe 501 at the lower end of the corrugated pipe 5, the installation of the nozzle 503 is realized, then the push block 603 is retracted through the second electric push rod 602, the two groups of sliding blocks 605 pull the movable rods 604 to open and close on the sliding rail support 6 through the push block 603, the sliding block 605 drives the clamping ring 402 on the sliding rod 401 to open and close, and the clamping ring 402 is attached between the limiting rings 504 on the outer wall of the nozzle 503, so as to lock the installed nozzle 503, avoid loosening, and adopt the clamping ring 402 locking mode driven by the threaded connection and the electric push rod, thereby simplifying the installation and disassembly process of the nozzle 503, facilitating the selection of the appropriate nozzle 503 for use according to the requirements, and improving the adaptability of the equipment.

[0031] The contents not described in detail in the specification are all prior art known to those skilled in the art.

[0032] In operation, the nozzle 503 is first threaded through the inside of the positioning bracket 4, the threaded sleeve 502 on the nozzle 503 is screwed with the threaded pipe 501 at the lower end of the corrugated pipe 5, the installation of the nozzle 503 is realized, then the push block 603 is retracted by the second electric push rod 602, the two groups of sliding blocks 605 pull the movable rods 604 to open and close on the slide rail bracket 6 through the push block 603, the clamping ring 402 on the slide rod 401 is opened and closed by the sliding block 605, and the clamping ring 402 is clamped between the limiting rings 504 on the outer wall of the nozzle 503, so as to lock the installed nozzle 503 and avoid loosening. The clamping ring 402 locking mode driven by screw connection and electric push rod simplifies the installation and disassembly process of the nozzle 503, facilitates the selection of appropriate nozzles 503 for use according to requirements, and improves the adaptability of the equipment.

[0033] Then, by rotating the screw rod 203, the control plate 204 is slid in the inside of the control housing 202, so as to adjust the flow in the inside of the feeding pipe 201, and then change the flow area in the feeding pipe 201, realize the control of the spray flow, meet the specific demand of the spray amount in different application scenarios, and the first electric push rod 302 is pushed when it is retracted, the adjusting plate 301 is rotated through the rotating shaft at the front end of the fixed plate 3, so as to adjust the angle of the positioning bracket 4 at the lower end of the adjusting plate 301, and the installed nozzle 503 can be adjusted and controlled through the corrugated pipe 5 at the lower end of the feeding pipe 201, so that the spray can cover a wider area or accurately spray a specific area, and can adapt to different shapes and angles of the workpiece surface, improving the versatility and flexibility of the equipment.

[0034] It should be noted that, in this document, the relationship terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray expansion device for a piezoelectric jet valve, comprising a piezoelectric jet valve body (1), wherein a connecting seat (2) is fixed to the lower end of the piezoelectric jet valve body (1), characterized in that: The connecting seat (2) is provided with an adjustment mechanism for the spray of the piezoelectric injection valve. The adjustment mechanism includes: The control component includes a feed pipe (201) fixed inside the connector (2), and a control plate (204) is provided inside the feed pipe (201) through a threaded assembly; The mounting assembly includes a positioning bracket (4) connected to the inner wall of the connecting seat (2) via a push assembly. A slide rod (401) is slidably connected inside the positioning bracket (4). A clamping ring (402) is fixed at one end of the slide rod (401) located inside the positioning bracket (4). A corrugated pipe (5) is fixed at the lower end of the feed pipe (201). A nozzle (503) is provided at the lower end of the corrugated pipe (5) via a rotating assembly.

2. The spray expansion device for a piezoelectric jet valve according to claim 1, characterized in that: The threaded assembly includes a metering housing (202) that is fixed inside the feed pipe (201). A screw (203) is rotatably connected to one end of the metering housing (202). The metering plate (204) is located on the inner wall of the metering housing (202), and the metering plate (204) is threadedly connected to the screw (203).

3. A spray expansion device for a piezoelectric jet valve according to claim 1, characterized in that: The jacking assembly includes a fixing plate (3) fixed to the inner wall of the connecting seat (2). The front end of the fixing plate (3) is provided with an adjusting plate (301) rotatably connected by a rotating shaft. The positioning bracket (4) is located at the lower end of the adjusting plate (301). The adjusting plate (301) and the positioning bracket (4) are fixedly connected. The inner wall of the adjusting plate (301) is provided with a first electric push rod (302) rotatably connected by a rotating shaft. The base of the first electric push rod (302) is rotatably connected to the inner wall of the connecting seat (2) by a rotating shaft.

4. A spray expansion device for a piezoelectric jet valve according to claim 1, characterized in that: The positioning bracket (4) has a slide rail bracket (6) fixed to its side wall. A slider (605) is slidably connected inside the slide rail bracket (6). The side wall of the slider (605) extends to the other side of the slide rail bracket (6) and is fixedly connected to the slide rod (401). A support plate (601) is fixed to the front end of the slide rail bracket (6). A second electric push rod (602) is fixed inside the upper end of the support plate (601). A push block (603) is fixed to the telescopic end of the second electric push rod (602). Movable rods (604) are provided on both sides of the push block (603) and are rotatably connected to the slider (605) through a rotating shaft. The other end of the movable rod (604) is rotatably connected to the slider (605) through a rotating shaft.

5. A spray expansion device for a piezoelectric jet valve according to claim 1, characterized in that: The rotating assembly includes a threaded tube (501) fixed at the lower end of a bellows (5), and a threaded sleeve (502) is threadedly connected inside the threaded tube (501). The nozzle (503) is located at the lower end of the threaded sleeve (502).

6. A spray expansion device for a piezoelectric jet valve according to claim 1, characterized in that: A pair of limiting rings (504) are fixed to the outer wall of the nozzle (503), and the clamping ring (402) is located inside the limiting rings (504).

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