CN205551722U - Dish and backflow welder blow - Google Patents

Abstract

The utility model provides a blow dish and backflow welder blow the dish including framework and bottom plate, and the bottom plate is connected with the framework, and wherein, the bottom plate is provided with multirow blow hole group, and each arranges blow hole group including a plurality of blow hole, second bottom plate that blow hole is followed to the bottom plate axial court framework infolding curved first bottom plate and was connected with first bottom plate, and first bottom plate and second bottom plate are equipped with blow hole. And install this blow the dish backflow welder. Should blow the dish and install the backflow welder of this dish of blowing effectual solved in the past flat blow the dish easily middle part gathering oil drip and make oil the product drips and on and cause product contamination, condemned problem to can drip the oil that the dish of blowing go up to produce the water conservancy diversion to the backflow welder in, has improved the yield of product, and has practiced thrift the processing cost.

Description

Air blow pan and reflow machine

Technical field

This utility model relates to tin-soldering device field, particularly relates to a kind of air blow pan and is provided with the reflow machine of this air blow pan.

Background technology

SMT, i.e. surface installation technique (surface mounting technology), it is a kind of technology universal in current Electronic Assemblies industry and technique, generally realize pcb board is carried out welding processing by the equipment such as continuous tunnel furnace, reflow machine, such as, the element on various boards used in computer is all welded on wiring board by this technique, there is a heater circuit inside of this equipment, air or nitrogen are heated to sufficiently high temperature after-blow to having posted the wiring board of element, allow the solder of elements on either side bond with mainboard after melting.

Reflow Soldering is also known as " reflow welding ", its use equipment is referred to as " Re-current welder " or " reflow ovens " (Reflow Oven), reflow soldering process is by providing a kind of heating environment, makes solder(ing) paste be heated the equipment melted thus allow Surface Mount Component and PCB pad reliably be combined by solder(ing) paste alloy.Conventional backflow welding machine mainly includes preheating zone, weld zone, cooling zone and PCB induction system; generally reflow machine is divided into dry section, preheating zone, weld zone and cooling zone etc., and cooling zone generally uses air blow pan that the solder(ing) paste on the pcb board after weld zone welding processing is carried out cooling and dries up.But the air blow pan used on market is all flat air blow pan, although flat air blow pan simple in construction, but solder(ing) paste easily forms oil droplet during colding and heat succeed each other on flat air blow pan, if processing not in time in the course of processing, the oil droplet on flat air blow pan can be made to drop onto on pcb board, pcb board is made to scrap, and often cannot in time the oil droplet on air blow pan be processed in reflow machine work process, product is easily polluted by oil droplet when cooling, causes product rejection and processing cost to improve.

Summary of the invention

First purpose of the present utility model is to provide a kind of air blow pan that oil droplet can carry out water conservancy diversion.

Second purpose of the present utility model is to provide a kind of reflow machine that oil droplet can carry out water conservancy diversion.

In order to realize the first purpose of the present utility model, this utility model provides a kind of air blow pan, including framework and base plate, base plate is connected with framework, wherein, base plate is provided with multiple rows of blowhole group, and each row's blowhole group includes multiple blowhole, base plate is bent into the first base plate and the second base plate being connected with the first base plate along the axial of blowhole in framework, and the first base plate and the second base plate are provided with blowhole.

Therefore, owing to Colophonium easily forms little oil droplet during colding and heat succeed each other, and by base plate bending in the first base plate and second base plate with certain angle, make reflow machine when product is cooled down, produced oil droplet can be in the first base plate and/or the second base plate recovery channel reflow machine, avoid the product in processing contaminated and become waste product, the effective yield rate improving production, save production cost.

Further scheme is, the blowhole dislocation layout that adjacent two row's blowhole groups are corresponding.

Further scheme is, the first side of framework is provided with stopper slot.

Further scheme is, the angle between the first base plate and the second base plate is 90 degree to 180 degree.

Further scheme is, a diameter of 2 millimeters to 5 millimeters of blowhole.

Further scheme is, the angle between the first base plate and the second base plate is 171 degree.

Further scheme is, a diameter of 3.5 millimeters of blowhole.

Further scheme is, air blow pan also includes that handle, handle are arranged on the second side of the framework relative with the first side.

Therefore, the blowhole of adjacent two row's blowhole groups is staggeredly arranged, ensure that the cold wind that adjacent blowing mouth blows out will not interfere, more accurately the pad on pcb board is cooled down, stopper slot is set so that air blow pan is preferably connected and spacing with the upper furnace of reflow machine, handle is installed conveniently air blow pan be replaced and clear up, and the angle between the first base plate of air blow pan and the second base plate can be adjusted correspondingly according to the body size of reflow machine.

In order to realize the second purpose of the present utility model, this utility model provides a kind of reflow machine, including guide rail, air blow pan, upper furnace and the lower hearth being connected with upper furnace, inner chamber is formed between upper furnace and lower hearth, guide rail is arranged in the lumen, air blow pan includes framework and base plate, base plate is connected with framework, air blow pan is positioned at the top of guide rail, and on air blow pan, it is arranged on the cooling zone of reflow machine, wherein, base plate is provided with multiple rows of blowhole group, each row's blowhole group includes multiple blowhole, base plate is bent into the first base plate and the second base plate being connected with the first base plate along the axial of blowhole in framework, first base plate and the second base plate are provided with blowhole.

Further scheme is, the blowhole dislocation layout that adjacent two row's blowhole groups are corresponding.

Therefore, the reflow machine of the described air blow pan being provided with in such scheme, effectively solve conventional flat air blow pan time product is cooled down, owing to Colophonium forms little oil droplet during colding and heat succeed each other and is gathered on flat air blow pan, and make little oil droplet drop onto the problem of the contamination of products caused on product, improve the yield rate of product and saved production cost.

Accompanying drawing explanation

Fig. 1 is the structure chart of this utility model reflow machine.

Fig. 2 is the installation site schematic diagram of the air blow pan of this utility model reflow machine.

Fig. 3 is the structure chart at the first visual angle of the air blow pan of this utility model reflow machine.

Fig. 4 is the structure chart at the second visual angle of the air blow pan of this utility model reflow machine.

Fig. 5 is the structure chart at the 3rd visual angle of the air blow pan of this utility model reflow machine.

Fig. 6 is the enlarged drawing in Fig. 5 at A.

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Detailed description of the invention

Seeing figures.1.and.2, Fig. 1 is the structure chart of this utility model reflow machine, and Fig. 2 is the installation site schematic diagram of the air blow pan of this utility model reflow machine.Reflow machine 1 includes guide rail 11, air blow pan 2, upper furnace 12 and the lower hearth 13 being connected with upper furnace 12, forms cavity 14 between upper furnace 12 and lower hearth 13, and guide rail 11 is arranged in cavity 14.Reflow machine 1 includes dry section, preheating zone, weld zone and cooling zone, and guide rail 11 is for transmitting processed pcb board 15, and passes sequentially through the dry section of reflow machine 1, preheating zone, weld zone and cooling zone in X direction and be processed.

Being the structure chart at the first visual angle of the air blow pan of this utility model reflow machine with reference to Fig. 3 and Fig. 4, Fig. 3, Fig. 4 is the structure chart at the second visual angle of the air blow pan of this utility model reflow machine.In conjunction with Fig. 2, air blow pan 2 is arranged on the upper furnace 12 of reflow machine 1 and is positioned at above guide rail 11, and air blow pan 2 is arranged on cooling zone, for the pcb board 15 completing welding processing is carried out scolding tin cooling.

Air blow pan 2 includes framework 21, base plate 22 and handle 24, and base plate 22 is connected with framework 21 by bolt, and base plate 22 is provided with multiple rows of blowhole group 23, and each row's blowhole group 23 includes multiple blowhole 231.Base plate 22 is bent into base plate 221 and the base plate 222 being connected with base plate 221 along the axial of blowhole 231 in framework 21, and between base plate 221 and base plate 222, shape forms an angle, V-shaped layout.Angle between base plate 221 and base plate 222 is between 90 degree to 180 degree, and specifically, the angle between base plate 221 and base plate 222 is 171 degree.

The side 211 of framework 21 is provided with stopper slot 25, and stopper slot 25, for coordinating with the stopper slot on upper furnace 12, plays and installs and spacing effect.Air blow pan 2 also includes shaking hands 24, and handle 24 is arranged on the side 212 relative with side 211 of framework 21, and air blow pan 2 can quickly be dismounted by handle 24, clears up the oil droplet having residual on air blow pan 2 in time.

Being the structure chart at the 3rd visual angle of the air blow pan of this utility model reflow machine with reference to Fig. 5 and Fig. 6, Fig. 5, Fig. 6 is the enlarged drawing in Fig. 5 at A.The corresponding blowhole 231 of two groups of adjacent blowhole groups 23 is staggeredly arranged, on the width of air blow pan, the corresponding blowhole 231 of two groups of adjacent blowhole groups 23 is not on identical horizontal line, the cold wind effectively avoiding adjacent two blowhole 231 blowout forms interference, make it possible to more accurately the pad on pcb board 15 be cooled down, improve the efficiency of cooling and the quality of cooling simultaneously.A diameter of 2 millimeters to 5 millimeters of blowhole 231, specifically, a diameter of 3.5 millimeters of blowhole 231.

From such scheme, air blow pan effectively solves the problem that Colophonium easily forms little oil droplet during colding and heat succeed each other on flat air blow pan, and general little oil droplet coalescence is at the medium position of flat air blow pan, easily drop onto on pcb board man-hour adding, cause pollution and the damage of pcb board.The base plate of air blow pan is configured with the first base plate and second base plate of certain angle, the little oil droplet that Colophonium is produced during colding and heat succeed each other can flow to the outside of guide rail along the first base plate and/or the second base plate, avoid little oil droplet to drop onto on pcb board, the product in processing to be polluted and make product become waste product, the effective yield rate improving production, saves production cost.

Finally it is emphasized that; the foregoing is only preferred embodiment of the present utility model; it is not limited to this utility model; for a person skilled in the art; this utility model can have various change and change; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.

Claims (10)

1. air blow pan, including framework and base plate, described base plate is connected with described framework, it is characterised in that:

Described base plate is provided with multiple rows of blowhole group, and blowhole group described in each row includes multiple blowhole；

Described base plate is bent into the first base plate and the second base plate being connected with described first base plate along the axial of described blowhole in described framework, and described first base plate and described second base plate are equipped with described blowhole.

Air blow pan the most according to claim 1, it is characterised in that:

The described blowhole dislocation layout that blowhole group described in adjacent two rows is corresponding.

Air blow pan the most according to claim 1, it is characterised in that:

First side of described framework is provided with stopper slot.

Air blow pan the most according to claim 1, it is characterised in that:

Angle between described first base plate and described second base plate is 90 degree to 180 degree.

Air blow pan the most according to claim 1, it is characterised in that:

A diameter of 2 millimeters to 5 millimeters of described blowhole.

Air blow pan the most according to claim 4, it is characterised in that:

Angle between described first base plate and described second base plate is 171 degree.

Air blow pan the most according to claim 5, it is characterised in that:

A diameter of 3.5 millimeters of described blowhole.

Air blow pan the most according to claim 3, it is characterised in that:

Described air blow pan also includes handle, and described handle is arranged on the second side of the described framework relative with described first side.

9. reflow machine, including guide rail, air blow pan, upper furnace and the lower hearth being connected with described upper furnace, inner chamber is formed between described upper furnace and described lower hearth, described guide rail is arranged in described inner chamber, described air blow pan includes that framework and base plate, described base plate are connected with described framework, and described air blow pan is positioned at the top of described guide rail, and on described air blow pan, it is arranged on the cooling zone of described reflow machine, it is characterised in that:

Described base plate is provided with multiple rows of blowhole group, and blowhole group described in each row includes multiple blowhole；

Described base plate is bent into the first base plate and the second base plate being connected with described first base plate along the axial of described blowhole in described framework, and described first base plate and described second base plate are equipped with described blowhole.

Reflow machine the most according to claim 9, it is characterised in that:

The described blowhole dislocation layout that blowhole group described in adjacent two rows is corresponding.