CN201340168Y

CN201340168Y - Drying apparatus and air supply device

Info

Publication number: CN201340168Y
Application number: CNU2009201293165U
Authority: CN
Inventors: 牛高堂
Original assignee: SHENZHEN POWER DE AUTOMATION PRECISION EQUIPMENT CO Ltd
Current assignee: SHENZHEN POWER DE AUTOMATION PRECISION EQUIPMENT CO Ltd
Priority date: 2009-01-09
Filing date: 2009-01-09
Publication date: 2009-11-04
Anticipated expiration: 2019-01-09

Abstract

The utility model discloses a drying apparatus and an air supply device. The drying apparatus comprises a blower, an air supply duct, air chambers, an air knife, a drying chamber and a water outlet pipe below the drying chamber, the air blown out from the blower sequentially passes through the air supply duct, the air chambers and the air knife to enter the drying chamber, the air chambers comprise a main air chamber and at least two side air chambers, the air supply duct is communicated with the main air chamber, the main air chamber is communicated with at least two side air chambers, each side air chamber is communicated with the air knife, and at least two air outlets of the air knife face the location of the object to be dried in different directions. The utility model has rather high drying efficiency.

Description

Dryer and air-supply arrangement thereof

Technical field

The utility model relates to a kind of drying plant.

Background technology

SMT is the circuit board surface package technique, is popular a kind of technology and technology in the present electronics assembling industry.Have only 1/tens device and traditional electronic devices and components are collapsed into volume, integrated printed circuit board (PCB) (substrate) process that is assembled into is called SMT technology.

In the SMT technological process, first procedure be with the soldering paste silk-screen to the PCB substrate, the silk-screen operation need be used " steel mesh ".Steel mesh for guaranteeing to print the quality on road and obtain silk-screen effect preferably, need clean the residual tin cream on it, scaling powder or the like some impurity after steel mesh uses after using certain number of times, utilizes dryer that steel mesh is dried then.

Consult Fig. 1, a kind of prior art dryer comprises blower fan 1, air supply duct 2, air compartment 3, air knife 4, hothouse 5, outlet pipe 6 and storage tank 7.Dryer also comprises cold and hot air circulating system 8 in addition, realizes the drying and the dried heating of dry preceding air respectively, the condition that obtains drying.Wherein, blower fan 1 air inlet and the cold air circulating system as air circulation power is tightly connected.Air enters hot air circulating system through behind the cool drying earlier, makes air become 40 degree dry gas and directly arrives air compartment 3 by ajutage 2 roads.The hot-air of air compartment 3 blows to the steel mesh 9 of setting from top to bottom by air knife 4, makes steel mesh 9 dryings.The moisture of separating out after the drying enters storage tank 7.

But the drying rate of above-mentioned prior art dryer is slow excessively, and the time of oven dry is for probably being 15 seconds/sheet, and is former because the globule on the steel mesh 9 is difficult to rapid draing, and the temperature on steel mesh 9 surfaces and inhomogeneous, and some places are dry soon, and some places are dry slowly; In addition, steel mesh 9 occurs baking and do not do phenomenon, and is former because hothouse 5 only is provided with air knife 4 on steel mesh 9, have the surface of less heated drying air contact in other places of steel mesh, and the globule more also is difficult to drying.

The utility model content

The technical problem that the utility model mainly solves provides a kind of dryer and air-supply arrangement thereof, can improve drying efficiency.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of dryer is provided, comprise blower fan, air supply duct, air compartment, air knife, the outlet pipe of hothouse and hothouse below, the air that described blower fan blows out passes through air supply duct successively, air compartment, air knife enters hothouse, described air compartment comprises main air chamber and at least two crosswind chambers, described air supply duct is communicated with described main air chamber, described main air chamber is communicated with described at least two crosswind chambers, each described crosswind chamber is communicated with described air knife, the air outlet of at least two described air knives with different directions towards thing to be dried position.

In the more excellent embodiment, two sides settings of thing to be dried that described at least two air knife air outlets are erect relatively respectively or tilted.

In the more excellent embodiment, the air-out direction of described air knife favours described thing to be dried side and deflection below.

In the more excellent embodiment, described at least two crosswind chambers are arranged at the both sides of thing to be dried position respectively.

In the more excellent embodiment, comprise 4 air knives at least, divide two-layer setting, two every layer.

In the more excellent embodiment, the air outlet of described air knife is a slit.

In the more excellent embodiment, the air-out direction of described air knife favours described thing to be dried side with the inclination angle less than 30 degree.

For solving the problems of the technologies described above, another technical scheme that the utility model adopts is: a kind of air-supply arrangement that is applied to dryer is provided, comprise main air chamber and at least two crosswind chambers, described main air chamber is communicated with air supply duct and described at least two crosswind chambers of described dryer respectively, each described crosswind chamber is communicated with the air knife of described dryer, the air outlet of at least two described air knives with different directions towards thing to be dried position.

The beneficial effects of the utility model are: be different from the prior art dryer owing to the single technological deficiency that is difficult to the whole steel mesh of rapid draing surface of air knife air outlet direction to the steel mesh blowing, the utility model designs a kind of novel air-supply arrangement, adopt two above crosswind chambers and air knife, wherein air knife with the air outlet of different directions towards thing to be dried, can carry out air-dryly at thing different surfaces to be dried simultaneously, can carry out drying with fast speed and efficient.

Description of drawings

Fig. 1 is the structural representation of prior art dryer;

Fig. 2 is the structural representation of the utility model dryer embodiment;

Fig. 3 is the structural representation of the utility model air-supply arrangement embodiment;

Fig. 4 is the location diagram of air knife and steel mesh among Fig. 2;

Fig. 5 is the schematic diagram of inclination steel mesh in dryer.

The specific embodiment

Please refer to Fig. 3, is the schematic diagram of dryer embodiment of the present invention.Described dryer comprises: the outlet pipe 260 and the storage tank 270 of cold and hot air circulating system 280, blower fan 210, air supply duct 220, main air chamber 230, crosswind chamber 231, air knife 240, hothouse 250, hothouse 250 belows.Described main air chamber 230 and crosswind chamber 231 are referred to as air compartment.

Described blower fan 210, air supply duct 220, main air chamber 230, crosswind chamber 231, air knife 240, hothouse 250 are communicated with successively.Crosswind chamber 231 is at least two, and crosswind chamber 231 is 3 in the present embodiment.Described air supply duct 220 is communicated with described main air chamber 230, and main air chamber 230 is positioned at hothouse 250 tops.

Consult Fig. 4,3 crosswind chambers 231 all are communicated with described main air chamber 230 respectively, and crosswind chamber 231 is positioned at the hothouse 250 of 230 belows, main air chamber, and erect and place.Each described crosswind chamber 231 all is communicated with described air knife 240.The air outlet of described air knife 240 with different directions towards thing to be dried 290 positions.In the present embodiment, comprise 8 air knives 240, divide two-layer crosswind chamber 231 sides that are arranged at respectively up and down.

During work, air becomes 40 degree dry gas earlier through behind the cool drying of cold and hot air circulating system 280.The dry air that blows out through blower fan 210 enters hothouse 250 through air supply duct 220, main air chamber 230, crosswind chamber 231, air knife 240 successively.Hot-air blows to the thing to be dried 290 of setting by air knife 240 from all directions again, makes thing 290 dryings to be dried.The moisture of separating out after the drying enters storage tank 270 through outlet pipe 260.

Be different from the prior art dryer owing to the single technological deficiency that is difficult to the whole thing to be dried of rapid draing 290 surfaces of air knife 240 air outlet directions to thing 290 blowings to be dried, above-mentioned the utility model embodiment adopts two above crosswind chambers 231 and air knife 240, wherein air knife 240 with the air outlet of different directions towards thing 290 to be dried, can carry out air-dryly at thing 290 different surfaces to be dried simultaneously, can carry out drying with fast speed and efficient.

Consult Fig. 4, in a specific embodiment, 4 air knife 240 corresponding steel mesh settings, be steel mesh between two parallel crosswind chambers 231, the side that both sides air compartment 231 closes on steel mesh respectively is provided with two air knives 240, and two sides of steel mesh that air knife 240 air outlets 241 on the both sides air compartment 231 are erect respectively relatively are provided with, make two surfaces of steel mesh carry out air-dry simultaneously, also simultaneously the different piece on a surface of steel mesh is carried out air-dryly, realize comprehensive drying, accelerate rate of drying greatly.

And the air-out direction of described air knife 240 can favour described steel mesh side and deflection below, and direction that like this can the globule flows down on steel mesh is taken advantage of a situation the globule and blown down, and makes the faster drying of steel mesh.

Consult Fig. 5, the described steel mesh of rectangular configuration can be obliquely installed, and the angular flux of the globule that is beneficial to steel mesh bottom along lower limb toward steel mesh minimum point place is moving and drip.

In the embodiment that has only two crosswind chambers 231, described two crosswind chambers 231 are arranged at the both sides of steel mesh position respectively.Air knife 240 quantity are 4 then, divide two-layer setting, two every layer.

For accelerating the wind speed and the blast of air knife 240 air outlets 241, the air outlet 241 of described air knife 240 can be a slit, and the high-voltage high-speed airflow of formation impacts the steel mesh surface, the moisture film on the globule and covering steel mesh surface can be blown away, and greatly accelerates the steel mesh dry run.

For further the globule and the moisture film that covers the steel mesh surface being blown away, the air-out direction of described air knife 240 favours described steel mesh side with the inclination angles less than 30 degree, and the air-flow that impacts the steel mesh surface with this angle reaches bigger air-dry area when can produce than high impact to the globule on steel mesh surface or moisture film.

In addition, also consult Fig. 3, the utility model also provides a kind of air-supply arrangement that is applied to dryer, comprise main air chamber 230 and at least two crosswind chambers 231, described main air chamber 230 is communicated with air supply duct 220 and described at least two crosswind chambers 231 of described dryer respectively, each described crosswind chamber 231 is communicated with the air knife 240 of described dryer, the air outlet of at least two described air knives 240 with different directions towards thing to be dried 290 positions.

Described at least two crosswind chambers 231 are arranged at the both sides of thing to be dried 290 positions respectively.

The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. dryer comprises the outlet pipe of blower fan, air supply duct, air compartment, air knife, hothouse and hothouse below, and the air that described blower fan blows out enters hothouse through air supply duct, air compartment, air knife successively, it is characterized in that:

Described air compartment comprises main air chamber and at least two crosswind chambers, described air supply duct is communicated with described main air chamber, described main air chamber is communicated with described at least two crosswind chambers, and each described crosswind chamber is communicated with described air knife, the air outlet of at least two described air knives with different directions towards thing to be dried position.

2. dryer according to claim 1 is characterized in that: two sides settings of thing to be dried that described at least two air knife air outlets are erect relatively respectively or tilted.

3. dryer according to claim 2 is characterized in that: the air-out direction of described air knife favours described thing to be dried side and deflection below.

4. according to each described dryer of claim 1 to 3, it is characterized in that: described at least two crosswind chambers are arranged at the both sides of thing to be dried position respectively.

5. dryer according to claim 4 is characterized in that: comprise 4 air knives at least, divide two-layer setting, two every layer.

6. dryer according to claim 4 is characterized in that: the air outlet of described air knife is a slit.

7. dryer according to claim 3 is characterized in that: the air-out direction of described air knife favours described thing to be dried side with the inclination angle less than 30 degree.

8. air-supply arrangement that is applied to dryer, it is characterized in that: comprise main air chamber and at least two crosswind chambers, described main air chamber is communicated with air supply duct and described at least two crosswind chambers of described dryer respectively, each described crosswind chamber is communicated with the air knife of described dryer, the air outlet of at least two described air knives with different directions towards thing to be dried position.

9. the air-supply arrangement that is applied to dryer according to claim 8 is characterized in that: described at least two crosswind chambers are arranged at the both sides of thing to be dried position respectively.