CN215465690U

CN215465690U - Novel piezoelectric dispensing valve

Info

Publication number: CN215465690U
Application number: CN202121517168.1U
Authority: CN
Inventors: 杨勇
Original assignee: Suzhou Gulang Technology Co ltd
Current assignee: Suzhou Gulang Technology Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-01-11
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a novel piezoelectric dispensing valve which comprises a base, piezoelectric ceramics, a lower firing pin and a nozzle, wherein one side of the top end of the base is fixedly connected with a connector, one side of the inside of the base is fixedly connected with a circuit board, one side of the inside of the base is movably connected with the piezoelectric ceramics, the bottom end of the piezoelectric ceramics is fixedly connected with a connecting block, the bottom end of the base is fixedly connected with a connecting piece, one side of the top end of the connecting piece is fixedly provided with a groove, the bottom end of the connecting piece is fixedly connected with the nozzle, the inside of the nozzle is provided with a spraying cavity, and the inside of the spraying cavity is movably connected with the lower firing pin. According to the utility model, an external voltage signal is transmitted to the piezoelectric ceramic through the connector, so that the piezoelectric ceramic is charged, the lower connecting block is driven at the same time, the upper firing pin on one side is driven by the connecting block to move downwards, and the upper firing pin impacts the lower firing pin below, so that the lower firing pin performs point pressing on glue solution in the lower cavity, and the point pressing operation is performed through the spraying cavity in the lower nozzle.

Description

Novel piezoelectric dispensing valve

Technical Field

The utility model relates to the technical field of dispensing valves, in particular to a novel piezoelectric dispensing valve.

Background

The piezoelectric dispensing valve utilizes the characteristics of piezoelectric materials, generates mechanical force through voltage, and is opened when the piezoelectric materials below are charged; when the overlying piezoelectric material is charged, the valve closes. Because the space of opening, closing the valve is minimum, and the operating frequency is extremely high, can spout the liquid material of minim at a high speed, current piezoelectric dispensing valve still has certain problem and defect, and specific problem is as follows:

1. in the existing piezoelectric dispensing valve, the firing pin is easy to wear after being used for a long time, and the dispensing efficiency is reduced;

2. the existing piezoelectric dispensing valve has a fixed glue outlet aperture and cannot be adjusted according to different requirements;

3. the charging barrel of the existing piezoelectric dispensing valve is not easy to detach and replace.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel piezoelectric dispensing valve, which aims to solve the problems that the use is influenced by the abrasion of a firing pin, the glue outlet caliber is fixed, a charging barrel is not easy to disassemble and the like in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel piezoelectric dispensing valve comprises a base, piezoelectric ceramics, a lower firing pin and a nozzle, wherein one side of the top end of the base is fixedly connected with a connector, and one side of the inside of the base is fixedly connected with a circuit board, one side of the inside of the base is movably connected with piezoelectric ceramics, the bottom end of the piezoelectric ceramic is fixedly connected with a connecting block, the bottom end of the base is fixedly connected with a connecting piece, and one side of the top end of the connecting piece is fixedly provided with a groove, the bottom end of the connecting piece is fixedly connected with a nozzle, and a spraying cavity is arranged inside the nozzle, a lower firing pin is movably connected inside the spray cavity, the bottom end of the spray nozzle is fixedly connected with an opening and closing device, one side of the opening and closing device is fixedly provided with a first chute, and the top of the opening and closing device is provided with a second sliding chute, the inside of the opening and closing device is movably connected with a rotating platform, and one side of the rotating platform is provided with a third sliding chute.

Preferably, one side of the top end of the base is fixedly connected with a connector, and one side of the interior of the base is fixedly connected with a circuit board.

Preferably, the bottom end of the inside of the base is movably connected with a mounting table, the top end of the mounting table is fixedly connected with a connecting block, and one side of the mounting table is fixedly connected with an upper firing pin.

Preferably, one side of the inside of the base is movably connected with a lower firing pin, the top end of the lower firing pin is movably connected with an upper firing pin, one side of the outside of the lower firing pin is fixedly connected with a spring, and one side of the outside of the lower firing pin is provided with a cavity.

Preferably, one side swing joint of connecting piece has rotatory screw, and one side fixedly connected with rotation axis of rotatory screw, the outside one side fixedly connected with fixation clamp of rotation axis, and one side swing joint of fixation clamp has the feed cylinder.

Preferably, the bottom end of the charging barrel is provided with a material conveying pipe, and one side of the material conveying pipe is fixedly connected with a cavity.

Preferably, one side of the rotating platform is fixedly connected with a sliding rod, and the outside of the sliding rod is movably connected with a first sliding chute.

Preferably, the inside swing joint of device that opens and shuts has the closing piece, and the top fixedly connected with first slider of closing piece to the outside swing joint of first slider has the second spout.

Preferably, the bottom end of the closing block is fixedly connected with a second sliding block, and the outside of the second sliding block is movably connected with a third sliding chute.

Compared with the prior art, the utility model has the beneficial effects that:

1. the novel piezoelectric dispensing valve transmits an external voltage signal to piezoelectric ceramics through a connector, so that the piezoelectric ceramics are charged, a lower connecting block is driven, the connecting block drives an upper firing pin on one side to move downwards, the upper firing pin impacts a lower firing pin below, the lower firing pin presses glue in a cavity below, dispensing operation is performed through a spraying cavity in a lower nozzle, a spring is arranged on one side outside the lower firing pin, the lower firing pin can drive the spring to stretch through impacting the lower firing pin by the upper firing pin, and displacement caused by collision between the upper firing pin and the lower firing pin is reduced, so that friction between the upper firing pin and the lower firing pin is reduced, loss is reduced, the service lives of the lower firing pin and the upper firing pin are longer, and the dispensing stability is improved;

2. the novel piezoelectric dispensing valve is characterized in that an opening and closing device is fixedly connected to the bottom end of a nozzle, a rotating table is arranged inside the opening and closing device, six closing blocks are arranged between the opening and closing device and the rotating table, a sliding rod on one side of the rotating table is driven by an external motor to move in a first sliding groove in the opening and closing device, the sliding rod can drive the rotating table to rotate inside the opening and closing device, a third sliding groove is formed in the rotating table, a second sliding block below the closing block can be driven to slide in the third sliding groove in the rotating table by rotation of the rotating table, the first sliding block above the closing block can slide in a second sliding groove in the opening and closing device, the second sliding groove can play a limiting role, the aperture of a dispensing opening can be controlled by movement of the closing blocks, and different dispensing sizes can be adjusted;

3. this kind of novel piezoelectricity dispensing valve, through be provided with the recess on the connecting piece, and the outside swing joint of recess has the feed cylinder, through putting into the recess with the feed cylinder, can be through the conveying pipeline of recess bottom to the inside input glue solution of cavity, simultaneously there is the fixation clamp in one side swing joint of feed cylinder, through rotating rotatory screw, can make rotatory screw pass through the rotation axis and drive the fixation clamp, make the fixation clamp paste the feed cylinder, and accomplish the fixed of feed cylinder, be provided with the rotation axis through the intermediate position at rotatory screw and fixation clamp, prevent that rotatory screw from rotating to drive the fixation clamp and rotate.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic top view of the folding device of the present invention;

FIG. 4 is a schematic structural diagram of an example of the opening and closing device, the rotating table and the closing block of the present invention;

fig. 5 is a side view of the closure block of the present invention.

In the figure: 1. a base; 2. a connector; 3. a circuit board; 4. piezoelectric ceramics; 401. connecting blocks; 402. An installation table; 5. an upper striker; 6. a lower striker; 601. a spring; 602. a cavity; 7. a connecting member; 701. A groove; 702. rotating the screw; 703. a rotating shaft; 704. a fixing clip; 705. a charging barrel; 706. a delivery pipe; 8. a nozzle; 801. a spray chamber; 9. an opening and closing device; 901. a first chute; 902. a second chute; 10. a rotating table; 1001. a third chute; 1002. a slide bar; 11. a closing block; 1101. a first slider; 1102. and a second slider.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown: a novel piezoelectric dispensing valve comprises a base 1, piezoelectric ceramics 4, a lower firing pin 6 and a nozzle 8, wherein one side of the top end of the base 1 is fixedly connected with a connector 2, one side inside the base 1 is fixedly connected with a circuit board 3, one side inside the base 1 is movably connected with the piezoelectric ceramics 4, and an external voltage signal is transmitted to the piezoelectric ceramics 4 through the circuit board 3 through the connector 2, so that the piezoelectric ceramics 4 are charged;

the bottom end of the piezoelectric ceramic 4 is fixedly connected with a connecting block 401, the bottom end inside the base 1 is movably connected with an installation table 402, the top end of the installation table 402 is fixedly connected with the connecting block 401, one side of the installation table 402 is fixedly connected with an upper firing pin 5, the piezoelectric ceramic 4 drives the lower connecting block 401 to enable the connecting block 401 to drive a spring 601 on one side to move downwards to impact a lower firing pin 6 on the lower side;

one side inside the base 1 is movably connected with a lower firing pin 6, the top end of the lower firing pin 6 is movably connected with an upper firing pin 5, one side outside the lower firing pin 6 is fixedly connected with a spring 601, one side outside the lower firing pin 6 is provided with a cavity 602, the bottom end of the base 1 is fixedly connected with a connecting piece 7, one side at the top end of the connecting piece 7 is fixedly provided with a groove 701, one side of the connecting piece 7 is movably connected with a rotating screw 702, one side of the rotating screw 702 is fixedly connected with a rotating shaft 703, one side outside the rotating shaft 703 is fixedly connected with a fixing clamp 704, one side of the fixing clamp 704 is movably connected with a charging barrel 705, the bottom end of the charging barrel 705 is provided with a material conveying pipe 706, glue in the charging barrel 705 can be conveyed into the cavity 602 through the material conveying pipe 706, and glue in the cavity 602 can be subjected to glue dispensing operation through a spraying cavity 801 in a nozzle 8 through extrusion of the lower firing pin 6;

a cavity 602 is fixedly connected to one side of the material conveying pipe 706, a nozzle 8 is fixedly connected to the bottom end of the connecting piece 7, a spraying cavity 801 is arranged inside the nozzle 8, a lower firing pin 6 is movably connected to the inside of the spraying cavity 801, an opening and closing device 9 is fixedly connected to the bottom end of the nozzle 8, a first chute 901 is fixedly arranged on one side of the opening and closing device 9, a second chute 902 is arranged at the top end of the opening and closing device 9, a rotating table 10 is movably connected to the inside of the opening and closing device 9, a third chute is arranged on one side of the rotating table 10, a sliding rod 1002 is fixedly connected to one side of the rotating table 10, a first chute 901 is movably connected to the outside of the sliding rod 1002, a closing block 11 is movably connected to the inside of the opening and closing device 9, a first slider 1101 is fixedly connected to the top end of the closing block 11, a second chute 902 is movably connected to the outside of the first slider 1101, and a second slider 1102 is fixedly connected to the bottom end of the closing block 11, and the outside of the second slider 1102 is movably connected with a third sliding chute 1001, and the external motor drives the sliding rod 1002 to move, so that the rotating platform 10 can rotate inside the opening and closing device 9, the closing block 11 on the third sliding chute 1001 in the rotating platform 10 moves, and the caliber of the dispensing opening is controlled.

The working principle is as follows: the glue solution in the material cylinder 705 can be transmitted into the cavity 602 through the material conveying pipe 706 on one side of the connecting piece 7, the connector 2 is arranged on one side of the top end of the base 1, an external voltage signal is transmitted to the piezoelectric ceramic 4 through the connector 2, the piezoelectric ceramic 4 is charged, meanwhile, the lower connecting block 401 is driven, the spring 601 on one side is driven by the connecting block 401 to move downwards, the spring 601 is made to impact the lower firing pin 6 below, the lower firing pin 6 is made to press the glue solution in the cavity 602 below, the glue solution enters the spraying cavity 801 in the nozzle 8 and is subjected to glue dispensing operation through the lower firing pin 6, the glue solution is dispensed from the opening and closing device 9 below the nozzle 8, the sliding rod 1002 is driven by the external motor to move, the rotating platform 10 can rotate in the opening and closing device 9, the closing block 11 on the third sliding chute 1001 in the rotating platform 10 is made to move, and the size of the mouth of the glue dispensing port is controlled, while a spring 601 is provided at a side outside the lower striker 6, by the upper striker 5 striking the lower striker 6, the lower firing pin 6 can drive the spring 601 to extend and retract, the displacement caused by collision between the upper firing pin 5 and the lower firing pin 6 can be reduced, thereby reducing the friction force between the upper firing pin 5 and the lower firing pin 6, reducing the loss, prolonging the service life of the lower firing pin 6 and the upper firing pin 5, increasing the stability of dispensing, meanwhile, the connecting piece 7 is provided with a groove 701, the outside of the groove 701 is movably connected with a material barrel 705, and by placing the material barrel 705 into the groove 701, glue can be input into the cavity 602 through the feed delivery pipe 706 at the bottom end of the groove 701, at the same time, a fixing clip 704 is movably connected to one side of the barrel 705, and by turning the rotary screw 702, the fixing clip 704 can be driven by the rotating screw 702 through the rotating shaft 703, so that the fixing clip 704 is tightly attached to the barrel 705, and the fixing of the barrel 705 is completed.

Claims

1. The novel piezoelectric dispensing valve is characterized by comprising a base (1), piezoelectric ceramics (4), a lower firing pin (6) and a nozzle (8), wherein one side inside the base (1) is movably connected with the piezoelectric ceramics (4), the bottom end of the piezoelectric ceramics (4) is fixedly connected with a connecting block (401), the bottom end of the base (1) is fixedly connected with a connecting piece (7), one side of the top end of the connecting piece (7) is fixedly provided with a groove (701), the bottom end of the connecting piece (7) is fixedly connected with the nozzle (8), a spraying cavity (801) is arranged inside the nozzle (8), the lower firing pin (6) is movably connected inside the spraying cavity (801), the bottom end of the nozzle (8) is fixedly connected with an opening and closing device (9), one side of the opening and closing device (9) is fixedly provided with a first sliding chute (901), and the top end of the opening and closing device (9) is provided with a second sliding chute (902), the inside swing joint of switching device (9) has revolving stage (10), and one side of revolving stage (10) is provided with third spout (1001).

2. The novel piezoelectric dispensing valve according to claim 1, wherein: one side fixedly connected with connector (2) on base (1) top, and one side fixedly connected with circuit board (3) of base (1) inside.

3. The novel piezoelectric dispensing valve according to claim 1, wherein: the bottom end of the inside of the base (1) is movably connected with an installation platform (402), the top end of the installation platform (402) is fixedly connected with a connecting block (401), and one side of the installation platform (402) is fixedly connected with an upper firing pin (5).

4. The novel piezoelectric dispensing valve according to claim 1, wherein: one side of the interior of the base (1) is movably connected with a lower firing pin (6), the top end of the lower firing pin (6) is movably connected with an upper firing pin (5), one side of the exterior of the lower firing pin (6) is fixedly connected with a spring (601), and one side of the exterior of the lower firing pin (6) is provided with a cavity (602).

5. The novel piezoelectric dispensing valve according to claim 1, wherein: one side of the connecting piece (7) is movably connected with a rotating screw (702), one side of the rotating screw (702) is fixedly connected with a rotating shaft (703), one side of the outer part of the rotating shaft (703) is fixedly connected with a fixing clamp (704), and one side of the fixing clamp (704) is movably connected with a charging barrel (705).

6. The novel piezoelectric dispensing valve according to claim 5, wherein: the bottom end of the charging barrel (705) is provided with a material conveying pipe (706), and one side of the material conveying pipe (706) is fixedly connected with a cavity (602).

7. The novel piezoelectric dispensing valve according to claim 1, wherein: one side of the rotating platform (10) is fixedly connected with a sliding rod (1002), and the outside of the sliding rod (1002) is movably connected with a first sliding chute (901).

8. The novel piezoelectric dispensing valve according to claim 1, wherein: the inside swing joint of device (9) that opens and shuts has closing piece (11), and the top fixedly connected with first slider (1101) of closing piece (11) to the outside swing joint of first slider (1101) has second spout (902).

9. The novel piezoelectric dispensing valve according to claim 8, wherein: the bottom end of the closing block (11) is fixedly connected with a second sliding block (1102), and the outside of the second sliding block (1102) is movably connected with a third sliding groove (1001).