CN207268240U - A kind of vacuum generator - Google Patents

Abstract

The utility model discloses a kind of vacuum generator, including：Connecting portion, it includes connecting portion and lower connecting portion；Formed with outlet chamber in lower connecting portion, upper connecting portion is interior formed with inlet chamber, and its side wall is equipped with air admission hole and inlet hole；Vacuum, its one end is built in inlet chamber, the other end is extended in outlet chamber, and it has been internally formed negative pressure cavity and negative pressure hole；And pressure sensor, it is embedded in the storage tank of connecting portion upper surface and its test side is extended in inlet chamber.The utility model detects the air pressure of the inlet end of inlet chamber by one pressure sensor of setting in real time, it can judge the vacuum magnitude of inlet hole according to the air pressure of detection, consequently facilitating sucking the impurity of more air when the ink rate of recovery is low, negative pressure is excessive when controlling the vacuum magnitude of inlet hole and then avoiding negative pressure too small；Set and be made of connecting portion and vacuum at the same time, consequently facilitating dismounting, cleaning when blocking.

Description

A kind of vacuum generator

Technical field

Code spraying technology is the utility model is related to, more particularly, to a kind of vacuum generator for being used to recycle ink-jet.

Background technology

Ink jet numbering machine, in order to avoid ink unnecessary in jet printing process wastes, is generally occurred after the completion of spray printing by vacuum Device produces negative pressure so that unnecessary ink to be recycled.But existing vacuum generator can not judge the negative pressure of its ink recovery port Size, it easily leads to the impurity in the air that ink recycling is not prompt enough or absorption is excessive.

Utility model content

The purpose of the utility model is to overcome above-mentioned technical deficiency, proposes a kind of vacuum generator, solves the prior art Middle vacuum generator can not judge the technical problem of the vacuum magnitude of its ink recovery port.

To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of vacuum generator, including：

One connecting portion, it includes connecting portion and is removably connected to the lower connecting portion of connecting portion lower end；The lower company Formed with an outlet chamber in socket part, formed with an inlet chamber connected with the outlet chamber in the upper connecting portion, and its side wall It is provided with the air admission hole and inlet hole connected with inlet chamber；

One vacuum, its one end is built in inlet chamber, the other end is extended in the outlet chamber, and it has been internally formed one The negative pressure cavity of up/down perforation and the negative pressure hole of a connection negative pressure cavity and inlet hole；Wherein, the upper and lower end of the negative pressure cavity respectively with The inlet end of inlet chamber is connected with the outlet side of outlet chamber；And

One pressure sensor, it is embedded in the storage tank of connecting portion upper surface and its test side extends to inlet chamber It is interior.

Compared with prior art, the utility model detects the inlet end of inlet chamber by one pressure sensor of setting in real time Air pressure, it can judge the vacuum magnitude of inlet hole according to the air pressure of detection, consequently facilitating the negative pressure of control inlet hole Size and then when ink rate of recovery is low, negative pressure is excessive when avoiding negative pressure too small, suck the impurity of more air；Set at the same time It is made of connecting portion and vacuum, consequently facilitating dismounting, cleaning when blocking.

Brief description of the drawings

Fig. 1 is the assembly structure diagram of the vacuum generator of the utility model；

Fig. 2 is the decomposition texture schematic diagram of the vacuum generator of the utility model；

Fig. 3 is the sectional view along A-A of Fig. 1 of the utility model；

Fig. 4 is the sectional view of the upper connection figure of the utility model.

Embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining The utility model, is not used to limit the utility model.

~4 are please referred to Fig.1, the utility model provides a kind of vacuum generator, including connecting portion 1, vacuum 2 and pressure Sensor 3.Connecting portion 1 includes upper connecting portion 11 and the lower connecting portion 12 for being removably connected to 11 lower end of connecting portion；Under described It is interior formed with an air inlet connected with the outlet chamber 121 formed with an outlet chamber 121, the upper connecting portion 11 in connecting portion 12 Chamber 111, and its side wall is provided with the air admission hole 112 and inlet hole 113 connected with inlet chamber 111；The upper end of vacuum 2 is built in Inlet chamber 111, lower end are then extended in the outlet chamber 121, and vacuum 2 is internally formed the negative pressure cavity of a up/down perforation 21 and one connection negative pressure cavity 21 and inlet hole 113 negative pressure hole 22；Wherein, the upper and lower end of the negative pressure cavity 21 respectively with air inlet The inlet end of chamber 111 is connected with the outlet side of outlet chamber 121；Pressure sensor 3 is embedded at the accommodating of 11 upper surface of connecting portion In groove 114 and its test side is extended in inlet chamber 111.

During practical application, air admission hole 112 can be connected with external air intake equipment, in order to input air-flow into air-inlet cavity, and Inlet hole 113 can be then connected with recycling mouth, and in order to recycle ink, and the outlet side of outlet chamber 121 can then be set with ink collection Standby connection, the collecting pipe of ink collection equipment can also be extended in outlet chamber 121 and be connected with the outlet side of negative pressure cavity 21.Very During empty generator work, air-flow is entered by air admission hole 112, and is entered by the inlet end of inlet chamber 111 in negative pressure cavity 21, in air-flow Along along 21 motion process of negative pressure cavity, it, which may be such that, produces negative pressure in the negative pressure hole 22 communicated therewith, so that in inlet hole 113 Negative pressure is produced, the ink recycled in mouth can be sucked and mixed with the air in negative pressure cavity 21 by it, be then sent to ink collection Equipment.Wherein, pressure sensor 3 can detect the air pressure of the inlet end of inlet chamber 111 in real time, and when the air pressure of its inlet end is bigger When, then the gas flow rate in negative pressure cavity 21 gets over block, and the negative pressure produced in corresponding inlet hole 113 is bigger, therefore the present embodiment can lead to The atmospheric pressure value that over-pressed force snesor 3 detects judges the vacuum magnitude in inlet hole 113, and then by controlling the inlet air of air intake equipment Amount control vacuum magnitude, its negative pressure that can ensure to produce mutually are agreed with the ink recycled, are recycled when avoiding negative pressure too small not in time, And more air is easily sucked when negative pressure is excessive, and then more impurity is sucked, and ink is easily mixed with the impurity in air Cause blocking or ink contamination, therefore it is easy to control negative pressure.

Moreover, the upper and lower side of the vacuum 2 of the present embodiment is built in inlet chamber 111 and outlet chamber 121, and upper connection respectively Portion 11 and lower connecting portion 12 when a jam does occur, directly can be torn open upper connecting portion 11 and lower connecting portion 12 using being detachably connected Unload, and vacuum 2 is taken out and is cleared up, it is big to clear up difficulty when which obviating blocking.

In order to ensure leakproofness that vacuum 2 is connected with inlet chamber 111,2 wall coaxial of vacuum is provided with The supreme lower annular groove 23 being arranged in order, intermediate annular groove 24 and upper annular groove 25, lower annular groove 23, intermediate annular groove 24 and on In a ring, the quantity of upper annular groove 25 and lower annular groove 23 can be arranged as required to annular groove 25, i.e., upper annular groove 25 can be set Be set to one, it is two or more, it is corresponding, lower annular groove 23 may be alternatively provided as one, it is two or more；In order to ensure to seal, It is embedded with sealing ring 4 and lower seal 5 in upper annular groove 25 and lower annular groove 23 respectively, upper sealing ring 4 and lower seal 5 Outer wall is sealed against in 111 inner wall of inlet chamber.Need to illustrate when, annular groove 23 is arranged to two or more instantly When, then at least one lower seal 5 is built in inlet chamber 111 and at least one lower seal 5 is built in outlet chamber 121, its It can ensure the synchronous sealed of inlet chamber 111 and outlet chamber 121；Due to not having high requirement to the leakproofness of outlet chamber 121, Therefore annular groove 25 and lower annular groove 23 are disposed as one on the present embodiment, but it is not the limit to the utility model System, it is only a preferred embodiment of the utility model.

Intermediate annular groove 24 then be used for connect inlet hole 113 and negative pressure hole 22, specifically, the notch of intermediate annular groove 24 with Inlet hole 113 connects, slot bottom is connected with negative pressure hole 22, it, which may be such that, produces negative pressure in whole intermediate annular groove 24, therefore negative pressure hole 22 can be arranged as required to for one, it is two or more, it can connect intermediate annular groove 24 with negative pressure cavity 21.And in order to Ink organic efficiency is improved, general negative pressure hole 22 is only arranged as one, and it is radially set along vacuum 2 and and inlet hole 113 is coaxial, it can reduce the distance in recycling path, ensures organic efficiency.

In actual installation, upper sealing ring 4 and lower seal 5 are first generally respectively embedded into upper annular groove 25 and lower annular groove In 23, then upper sealing ring 4 and lower seal 5 is driven to be moved from bottom to top along inlet chamber 111 by vacuum 2, due to inlet hole 113 connect with inlet chamber 111, during upper sealing ring 4 upwards movement, since upper sealing ring 4 and 111 interference of inlet chamber are matched somebody with somebody Close, it causes 4 outer wall of sealing ring easily partly to protrude into inlet hole 113, so as to cause 4 outer wall of sealing ring to damage so that Leakproofness reduces, therefore inlet chamber 111 described in the present embodiment sets stepped, it includes outside diameter and is sequentially increased down from the bottom to top Annular seal space 111a, upper annular seal space 111b and air inlet cavity main body 111c, air admission hole 112 are connected with air inlet cavity main body 111c, inlet hole 113 connect with the lower annular seal space 111a, when upper sealing ring 4 moves upwards, since lower annular seal space 111a internal diameters are more than upper close Chamber 111b internal diameters are sealed, and lower annular seal space 111a internal diameters are more than upper 4 outside diameter of sealing ring, it may be such that 4 outer wall of sealing ring is close with Envelope chamber 111a inner walls are not in contact or rub, and which obviate sealing ring 4 and damage, ensure that its high leakproofness.Wherein, peace is worked as After the completion of dress, the upper sealing ring 4 is interference fitted with the upper annular seal space 111b, the lower seal 5 and the lower annular seal space 111a is interference fitted, so as to ensure that the stability of sealing.Wherein, for the ease of upper sealing ring 4 and lower seal 5 respectively upper The stability being fitted together in annular groove 25 and lower annular groove 23,2 upper end outside diameter of vacuum can be arranged to be slightly less than upper annular seal space The internal diameter of 111b, and 4 lower end outside diameter of vacuum is then slightly less than the internal diameter of lower annular seal space 111a.

Wherein, negative pressure is stablized for the ease of being formed, negative pressure cavity 21 described in the present embodiment includes the upper cavity 211 connected up and down With lower chamber 212,211 internal diameter of upper cavity is less than 212 internal diameter of lower chamber, and the negative pressure hole 22 is communicated in upper cavity 211 With the connectivity part of lower chamber 212.

Specific embodiment of the present utility model described above, does not form the restriction to scope of protection of the utility model. The various other corresponding changes and deformation that any technical concept according to the present utility model is made, should be included in this practicality In new scope of the claims.

Claims (5)

1. A kind of 1. vacuum generator, it is characterised in that including：

   One connecting portion, it includes connecting portion and is removably connected to the lower connecting portion of connecting portion lower end；The lower connecting portion It is interior formed with an outlet chamber, formed with an inlet chamber connected with the outlet chamber in the upper connecting portion, and the setting of its side wall There is the air admission hole and inlet hole connected with inlet chamber；

   One vacuum, its one end is built in inlet chamber, the other end is extended in the outlet chamber, and it has been internally formed about one The negative pressure cavity of perforation and the negative pressure hole of a connection negative pressure cavity and inlet hole；Wherein, the upper and lower end of the negative pressure cavity respectively with air inlet The inlet end of chamber is connected with the outlet side of outlet chamber；And

   One pressure sensor, it is embedded in the storage tank of connecting portion upper surface and its test side is extended in inlet chamber.
2. 2. vacuum generator according to claim 1, it is characterised in that the vacuum wall coaxial be provided with by down toward On the lower annular groove, intermediate annular groove and the upper annular groove that are arranged in order, the notch of the intermediate annular groove is connected with inlet hole, groove Bottom is connected with negative pressure hole, and sealing ring and lower seal are embedded with respectively in the upper annular groove and lower annular groove.
3. 3. vacuum generator according to claim 2, it is characterised in that the upper annular groove for one, it is two or more, The lower annular groove for one, it is two or more.
4. 4. the vacuum generator according to Claims 2 or 3, it is characterised in that the inlet chamber is stepped, it includes outer Lower annular seal space, upper annular seal space and the air inlet cavity main body that footpath is sequentially increased from the bottom to top, the inlet hole connect with the lower annular seal space It is logical；The upper sealing ring is interference fitted with the upper annular seal space, and the lower seal is interference fitted with the lower annular seal space.
5. 5. vacuum generator according to claim 4, it is characterised in that the negative pressure cavity includes the upper cavity connected up and down And lower chamber, the upper cavity internal diameter is less than lower chamber internal diameter, and the negative pressure hole is communicated in the connection of upper cavity and lower chamber Place.