阅读说明：本技术 一种用于混合锅底部挤压出料的自动阀装置 (Automatic valve device for extrusion discharging of bottom of mixing pot ) 是由 常广义 于蓓 韩秀洁 李锡文 王雪杨 贾媛媛 于 2021-08-25 设计创作，主要内容包括：本发明属于阀门装置领域,并具体公开了一种用于混合锅底部挤压出料的自动阀装置,其包括阀芯单元和控制锁紧单元,其中：所述阀芯单元包括锅体连接外壳、堵头、下堵头外壳和中心轴,所述堵头和下堵头外壳安装在锅体连接外壳的内部,且下堵头外壳部分嵌套在堵头内；所述下堵头外壳上设有密封盖,使下堵头外壳内形成空腔；所述中心轴一端安装下堵头外壳内,另一端固定在堵头上,且该中心轴中间段有活塞状凸起,该活塞状凸起将下堵头外壳内空腔分隔成两部分,该两部分空腔均与外部气源连通；所述控制锁紧单元用于将阀芯单元固定在混合锅底部。本发明实现了堵头开合的自动控制以及阀芯的自由拆卸,便于安装与清洗,实现了装置的自动化和集成化。(The invention belongs to the field of valve devices, and particularly discloses an automatic valve device for extrusion discharging of the bottom of a mixing pot, which comprises a valve core unit and a control locking unit, wherein: the valve core unit comprises a pot body connecting shell, a plug, a lower plug shell and a central shaft, wherein the plug and the lower plug shell are arranged in the pot body connecting shell, and the lower plug shell part is nested in the plug; the lower plug shell is provided with a sealing cover, so that a cavity is formed in the lower plug shell; one end of the central shaft is arranged in the lower plug shell, the other end of the central shaft is fixed on the plug, a piston-shaped bulge is arranged in the middle section of the central shaft, the piston-shaped bulge divides the cavity in the lower plug shell into two parts, and the cavities of the two parts are communicated with an external air source; the control locking unit is used for fixing the valve core unit at the bottom of the mixing pot. The invention realizes the automatic control of the opening and closing of the plug and the free disassembly of the valve core, is convenient for installation and cleaning, and realizes the automation and integration of the device.)

1. The utility model provides an automatic valve device for extrusion ejection of compact of mixing pot bottom which characterized in that, includes case unit (1) and control locking unit (2), wherein:

the valve core unit (1) comprises a pot body connecting shell (14), a plug (11), a lower plug shell (17) and a central shaft (12), wherein the plug (11) and the lower plug shell (17) are installed inside the pot body connecting shell (14), and part of the lower plug shell (17) is embedded in the plug (11); a sealing cover (13) is arranged on the lower plug shell (17) to form a cavity in the lower plug shell (17); one end of the central shaft (12) is arranged in the lower plug shell (17), the other end of the central shaft is fixed on the plug (11), a piston-shaped bulge is arranged at the middle section of the central shaft (12), the piston-shaped bulge divides the cavity in the lower plug shell (17) into two parts, and the cavities of the two parts are communicated with an external air source;

the control locking unit (2) is used for fixing the valve core unit (1) at the bottom of the mixing pot.

2. The automatic valve device for extrusion discharging from the bottom of a mixing pot as claimed in claim 1, wherein the central shaft (12) is provided with an annular groove, the lower plug housing (17) is internally provided with a limit piston (16), and the axial limit of the central shaft (12) is realized by the clamping and releasing of the limit piston (16) and the annular groove.

3. The automatic valve device for the extrusion discharging of the bottom of the mixing pot as claimed in claim 2, characterized in that one side of the limit piston (16) is a cavity, the cavity is connected with an external air source, the other side of the limit piston (16) is provided with a spring (15), the spring (15) is used for being matched with the external air source to realize the movement control of the limit piston (16), and further realize the clamping and the releasing of the limit piston (16) and the annular groove.

4. The automatic valve device for mixing pot bottom extrusion discharging of claim 1, characterized in that the control locking unit (2) comprises a support base (27) and a clamp (26) installed on the support base (27), the clamp (26) is used for locking and unlocking the cartridge unit (1).

5. The automatic valve device for the extrusion discharging of the bottom of a mixing pan according to claim 4, characterized in that the control and locking unit (2) further comprises a driving shaft (22) and a driven shaft (25), the driving shaft (22) and the driven shaft (25) are respectively connected with both ends of the clamping band (26) through threads, and the driving shaft (22) and the driven shaft (25) transmit torque through the intermediate shaft (24); the clamp (26) is divided into two pieces, and the thread turning directions of the two pieces of clamps are opposite to each other so as to realize the relative motion of the two pieces of clamps.

6. The automatic valve device for bottom extrusion of mixing pots according to claim 5, characterized in that the driving shaft (22) and the intermediate shaft (24), and the driven shaft (25) and the intermediate shaft (24) are connected by a bevel gear (23) and the torque is applied to the driving shaft (22) by a handle (21).

7. The automatic valve device for the extrusion discharging of the bottom of the mixing pot as claimed in claim 1, characterized in that the bottom of the lower plug housing (17) is open and is provided with four side bars, four air passages leading to two cavities at the two limit pistons (16) and two cavities divided by the piston-like projection of the central shaft (12) are respectively arranged in the four side bars, and the air passages are all communicated with an external air source.

8. Automatic valve device for the bottom extrusion of mixing pots according to any of claims 1 to 7, characterized by the fact that the pot connection housing (14) is provided with a step protrusion.

Technical Field

The invention belongs to the field of valve devices, and particularly relates to an automatic valve device for extrusion discharging of the bottom of a mixing pot.

Background

The high-viscosity solid rocket propellant is prepared by mixing an oxidant, a combustion agent and a small amount of additives by a chemical method or a physical method, and has the characteristics of high viscosity and low fluidity.

When high-viscosity materials such as solid rocket propellant are prepared by the mixer, discharging from the mixing pot after mixing is a key step. At present, the discharging mode of the mixing pot is mainly that the mixing pot is overturned by a certain angle through an overturning device, and materials are poured out of the mixing pot through manual assistance. However, the existing discharging mode is time-consuming and labor-consuming, is not suitable for large-scale production and preparation, prevents realization of automatic production, is difficult to clean a mixing pot after discharging, and has higher potential safety hazard.

Therefore, it is necessary to design an automatic valve device specially used for extruding and discharging from the bottom of the mixing pot, and the automatic valve device has important significance for improving the automatic production level, reducing the potential safety hazard and improving the production efficiency.

Disclosure of Invention

Aiming at the defects or the improvement requirements of the prior art, the invention provides an automatic valve device for extruding and discharging the bottom of a mixing pot, and aims to realize the automatic control of the opening and closing of a plug and the disassembly of a valve core, facilitate the installation and the cleaning and realize the automation and the integration of the device.

In order to achieve the purpose, the invention provides an automatic valve device for extruding and discharging the bottom of a mixing pot, which comprises a valve core unit and a control locking unit, wherein:

the valve core unit comprises a pot body connecting shell, a plug, a lower plug shell and a central shaft, wherein the plug and the lower plug shell are arranged inside the pot body connecting shell, and the lower plug shell part is nested in the plug; the lower plug shell is provided with a sealing cover, so that a cavity is formed in the lower plug shell; one end of the central shaft is arranged in the lower plug shell, the other end of the central shaft is fixed on the plug, a piston-shaped bulge is arranged in the middle section of the central shaft, the piston-shaped bulge divides the cavity in the lower plug shell into two parts, and the two parts of cavities are communicated with an external air source;

the control locking unit is used for fixing the valve core unit at the bottom of the mixing pot.

Preferably, the central shaft is provided with an annular groove, the lower plug shell is internally provided with a limiting piston, and the axial limiting of the central shaft is realized by clamping and loosening the limiting piston and the annular groove.

Preferably, one side of the limiting piston is a cavity, the cavity is connected with an external air source, a spring is mounted on the other side of the limiting piston, and the spring is used for being matched with the external air source to realize movement control of the limiting piston and further realize clamping and loosening of the limiting piston and the annular groove.

As a further preferred, the control locking unit includes a support seat and a clamp installed on the support seat for locking and unlocking the valve core unit.

Preferably, the control locking unit further comprises a driving shaft and a driven shaft, the driving shaft and the driven shaft are respectively connected with two ends of the hoop through threads, and torque is transmitted between the driving shaft and the driven shaft through an intermediate shaft; the clamp is divided into two pieces, and the thread turning directions of the two pieces of clamps are opposite to each other so as to realize the relative motion of the two pieces of clamps.

Further preferably, the drive shaft and the intermediate shaft, and the driven shaft and the intermediate shaft are connected by a bevel gear, and the drive shaft is applied with a torque by a handle.

Preferably, the bottom of the lower plug shell is open, four side rods are arranged at the bottom of the lower plug shell, four air passages leading to two cavities at the position of the two limit pistons and two cavities formed by dividing the piston-shaped protrusion of the central shaft are respectively formed in the four side rods, and the air passages are communicated with an external air source.

Preferably, step bulges are arranged on two sides of the pot body connecting shell.

Generally, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:

1. the automatic valve device provided by the invention realizes the automatic control of the opening and closing of the discharge hole at the bottom of the mixing pot by controlling the up-and-down movement of the plug through the valve core unit by using the air pressure, solves the problems of high discharging difficulty, low efficiency and complex operation of the mixing pot when preparing high-viscosity materials such as solid rocket propellant and the like, avoids the dangerous action of turning over the mixing pot in the discharging process, realizes the automatic, efficient and safe opening and closing work of the discharge hole of the mixing pot, and has higher working efficiency and safety.

2. According to the invention, the central shaft is provided with the groove, and the central shaft is automatically locked and limited by the spring and the limiting piston, so that the safety and the working stability of the device are improved.

3. The automatic valve device provided by the invention realizes the detachable structural design of the valve core unit contacting with materials, can be realized only by rotating the hand wheel in the control locking unit, is simple and reliable, can conveniently take down the valve core for cleaning after the mixing pot finishes discharging, avoids troubles caused by repeated installation, saves manpower and material resources, and has good adaptability.

4. The automatic valve device provided by the invention can be suitable for mixing pots with different diameters by adjusting the size of the connecting shell of the plug and the pot body, and has better universality.

Drawings

FIG. 1 is a schematic structural diagram of the top side of an automatic valve device for extrusion discharging from the bottom of a mixing pan according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the bottom side of an automatic valve device for extrusion discharging of the bottom of a mixing pan according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a valve core unit in an automatic valve device according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a control lock unit in the automatic valve device according to the embodiment of the present invention.

The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: 1-valve core unit, 2-control locking unit, 11-plug, 12-central shaft, 13-sealing cover, 14-pot body connecting shell, 15-spring, 16-limit piston, 17-lower plug shell, 21-handle, 22-driving shaft, 23-bevel gear, 24-intermediate shaft, 25-driven shaft, 26-clamp and 27-supporting seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The automatic valve device for extruding and discharging the bottom of the mixing pot provided by the embodiment of the invention is shown in fig. 1 and 2, and comprises a valve core unit 1 and a control locking unit 2, wherein: the valve core unit 1 controls the plug 11 to move up and down through air pressure, so that the opening and closing of the discharge hole are realized; the control locking unit 2 is connected with the valve core unit 1, so that the valve core unit 1 is butted with a discharge hole of the mixing pot, and the valve core unit is locked and released; the two units realize the automatic control of the opening and closing of the discharge hole at the bottom of the mixing pot.

Specifically, as shown in fig. 3, the valve core unit 1 includes a pot body connecting shell 14, a plug 11, a lower plug shell 17 and a central shaft 12, wherein stepped protrusions are arranged on two sides of the pot body connecting shell 14 for fixing with the control locking unit 2; the plug 11 and the lower plug shell 17 are arranged inside the pot body connecting shell 14, and the lower plug shell 17 is partially nested in the plug 11; the lower plug shell 17 is provided with a sealing cover 13 to seal the lower plug shell 17, so that a cavity is formed in the lower plug shell 17; the installation of center pin 12 one end in lower end cap shell 17, the other end is fixed on end cap 11, and this center pin 12 interlude has piston form arch, and two parts are separated into with end cap shell 17 inner cavity down to this piston form arch, and these two parts cavity all communicate with outside air supply to through ventilating the cavity with the reciprocating of drive center pin 12, and then drive reciprocating of end cap 11.

Preferably, an annular groove is formed in the central shaft 12, a limiting piston 16 is installed in the lower plug shell 17, the two limiting pistons 16 are symmetrically arranged on two sides of the central shaft 12, a spring 15 is installed behind the limiting piston 16, an air passage is arranged at the position of the limiting piston 16 and connected with an external air source, the limiting piston 16 is used for automatically locking the annular groove at the lower end of the central shaft 12 under the action of the spring 15, the limiting piston 16 is ventilated through the air passage to realize separation from the annular groove, and therefore axial limiting of the central shaft 12 is achieved. Further, the bottom of the lower plug shell 17 is open, four side rods are arranged at the bottom of the lower plug shell, four air passages leading to two cavities at the position of the two limiting pistons 16 and two cavities formed by piston-shaped bulges of the central shaft 12 are respectively formed in the four side rods, the air passages are communicated with an external air source, and materials flow down from the side rods.

Specifically, as shown in fig. 4, the control locking unit 2 includes a support seat 27, a driving shaft 22, a driven shaft 25 and a clamp 26, wherein the driving shaft 22 and the driven shaft 25 are connected through an intermediate shaft 24, and the driving shaft 22, the intermediate shaft 24 and the driven shaft 25 are mounted on the support seat 27; the driving shaft 22 and the driven shaft 25 are respectively connected with two ends of the hoop 26 through threads, the hoop 26 is divided into two pieces, and the thread turning directions of the two pieces of hoops are opposite, namely the driving shaft 22 and the driven shaft 25 drive the two pieces of hoops to move relatively, so that the valve core unit 1 is locked and loosened; the driving shaft 22 is applied with a torque force by the handle 21, and the driving shaft 22 and the intermediate shaft 24, and the driven shaft 25 and the intermediate shaft 24 are connected by a bevel gear 23, and the bevel gear 23 is used for transmitting the torque force.

The operation of the automatic valve device for extruding and discharging from the bottom of the mixing pot provided by the invention is described in detail below.

Firstly, mounting a supporting seat 27 at the bottom of the mixing pot, and then embedding the pot body connecting shell 14 into the pot bottom through a hoop 26 for fixing; when the materials are required to be extruded and discharged after the materials are mixed, firstly ventilating a cavity at the lower part of a piston-shaped bulge of the central shaft 12 to prevent the central shaft 12 from sliding downwards, and ventilating a cavity of the limiting piston 16 to overcome the resistance of the spring 15 and separate the limiting piston 16 from the annular groove, so that the axial limiting on the central shaft 12 is removed; then, the air is introduced into the upper cavity of the piston-shaped bulge of the central shaft 12, the air introduced into the lower cavity of the piston-shaped bulge of the central shaft 12 is reduced, the central shaft 12 is controlled to drive the plug 11 to move downwards, so that the material enters the lower plug shell 17 from the upper part of the plug 11 and flows out from the bottom of the lower plug shell 17, and the blanking is started.

After the blanking is finished, the handle 21 is rotated to drive the driving shaft 22 to rotate, the bevel gear 23 drives the intermediate shaft 24 and the driven shaft 25 to synchronously rotate, two pieces of the driving clamp 26 move oppositely, the valve core unit 1 falls under the action of gravity, and the valve core unit 1 is taken down.

After the valve core unit 1 is cleaned, the limiting piston 16 is controlled to lock the central shaft 12, then the valve core unit 1 is installed back into the pot body connecting shell 14, the handle 21 is rotated reversely, the two pieces of the hoop 26 are driven to move relatively, the valve core unit 1 is locked, and next discharging is waited.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.