CN115815085B - PCB baking device - Google Patents
PCB baking device Download PDFInfo
- Publication number
- CN115815085B CN115815085B CN202211459499.3A CN202211459499A CN115815085B CN 115815085 B CN115815085 B CN 115815085B CN 202211459499 A CN202211459499 A CN 202211459499A CN 115815085 B CN115815085 B CN 115815085B
- Authority
- CN
- China
- Prior art keywords
- baking
- pcb
- pipeline
- hot air
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007789 gas Substances 0.000 claims abstract description 53
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 239000002912 waste gas Substances 0.000 claims abstract description 7
- 238000009423 ventilation Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 7
- HHXNVASVVVNNDG-UHFFFAOYSA-N 1,2,3,4,5-pentachloro-6-(2,3,6-trichlorophenyl)benzene Chemical compound ClC1=CC=C(Cl)C(C=2C(=C(Cl)C(Cl)=C(Cl)C=2Cl)Cl)=C1Cl HHXNVASVVVNNDG-UHFFFAOYSA-N 0.000 description 33
- 150000003071 polychlorinated biphenyls Chemical group 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 241000219122 Cucurbita Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The application relates to a PCB baking device, which comprises a baking oven, wherein the baking oven comprises a box body, a hot air pipeline, a blower, a heater, an exhaust gas pipeline and a first filter; a tunnel type baking channel is arranged in the box body, an air inlet is arranged at the bottom of the box body, and an air valve is arranged at the air inlet; the hot air pipeline is positioned at the side of the baking channel, the lower end of the hot air pipeline extends to the lower part of the baking channel, and the upper end of the hot air pipeline extends to the upper part of the baking channel; the wind wheel of the blower is positioned in the box body so as to form air flow flowing from the lower end to the upper end in the hot air pipeline; the air inlet end of the waste gas pipeline extends to the lower part of the baking channel, and the air outlet end of the waste gas pipeline is provided with an air vent valve; the first filter is arranged on the box body and is positioned above the baking channel, and the upper end of the hot air pipeline is communicated with the first filter; the heater is arranged at the air inlet at the lower end of the hot air pipeline. In this application, fresh air directly gets into hot-blast pipeline internal heating circulation after the heating of heater, improves and toasts efficiency, reduces thermal loss to reduce and toast the energy consumption.
Description
Technical Field
The application relates to the technical field of PCB processing equipment, in particular to a PCB baking device.
Background
Generally, when parts on a circuit board are embedded, the circuit board is subjected to anti-welding treatment, namely, the part, which is not required to be attached with soldering tin, on the circuit board is coated with anti-welding ink in advance, and the circuit board coated with the anti-welding ink is required to be baked, so that the surface of the ink is dried, and the ink is rapidly molded. The circuit board is baked by using an oven, solder harmful gas and ink harmful gas are generally generated, the generated harmful gas is difficult to discharge, and if workers breathe the harmful gas for a long time, the harmful gas can cause bad influence on the body. While the existing baking device for the solder mask ink of the circuit board is provided with the harmful gas sucking and processing equipment, a large amount of heat is also sucked away, so that the power consumption is obviously increased.
Disclosure of Invention
In order to reduce heat dissipation and reduce baking energy consumption, the application provides a PCB baking device.
The application provides a PCB board baking equipment adopts following technical scheme:
a PCB board baking apparatus comprising:
the box body is internally provided with a tunnel type baking channel, the bottom of the box body is provided with an air inlet, and the air inlet is provided with an air valve;
the hot air pipeline is positioned at the side of the baking channel, the lower end of the hot air pipeline extends to the lower part of the baking channel, and the upper end of the hot air pipeline extends to the upper part of the baking channel;
the wind wheel of the blower is positioned in the box body so as to form air flow flowing from the lower end to the upper end in the hot air pipeline;
the air inlet end of the exhaust gas pipeline extends to the lower part of the baking channel, and the air outlet end of the exhaust gas pipeline is provided with an air vent valve;
the first filter is arranged on the box body and is positioned above the baking channel, and the upper end of the hot air pipeline is communicated with the first filter; the method comprises the steps of,
the heater is arranged at the air inlet at the lower end of the hot air pipeline and is used for heating the air flow at the lower end of the hot air pipeline.
Through adopting above-mentioned technical scheme, constantly carry the PCB board to toasting the passageway, start heater and air-blower, the air current in the box is through the heating of heater earlier, flows to the upper end from hot-blast pipeline's lower extreme again, flows back to in the hot-blast pipeline from last to down in the box again, can produce harmful gas in the heating process, and the air current is in cyclic process, and the filtration that adds through first filter can reduce the harmful gas's in the box content for keep hot-blast clean state in the box, realize hot-blast cyclic utilization. Through opening the breather valve on the exhaust pipe outlet end, can discharge partial harmful gas, through opening the breather valve of box air inlet, can mend fresh air, prevent that harmful gas concentration in the box from being too high from having the potential safety hazard. Through being provided with the air-blower, fresh air directly gets into hot-blast pipeline internal heating circulation after the heating of heater, improves and toasts efficiency, avoids causing the interference to the temperature in the box simultaneously to reduce and toast the energy consumption.
Optionally, a ventilation board is installed in the box body, and the ventilation board is above the baking channel.
Through adopting above-mentioned technical scheme, when the unstable condition that drops of centre gripping appears in the PCB board, the PCB board can drop to the ventilation board, prevents that the PCB board from dropping to the heater on, can play the guard action to the PCB board.
Optionally, still include the funnel, the funnel install in the bottom half, toast the passageway with the inside intercommunication of funnel, the funnel bottom with exhaust duct's inlet end intercommunication, the funnel lateral wall runs through and is equipped with the through-hole, the air intake department that hot-blast pipeline was equipped with the through-hole department that the funnel was equipped with is connected, the funnel lateral wall upper end runs through and is equipped with the vent, the air inlet department that bottom half was equipped with the vent department that is equipped with on the funnel passes through the pipeline intercommunication.
Through adopting above-mentioned technical scheme, the setting of funnel for in partly steam gets into exhaust duct through the funnel bottom, the air intake that another part steam got into hot-blast pipeline through the through-hole carries out further heating, circulates in the box again, makes steam concentrate in the funnel and distributes again, helps the reposition of redundant personnel of steam in the box.
Optionally, a filter cover is installed at the through hole of the funnel, and the heater is located below the filter cover.
Through adopting above-mentioned technical scheme, through being equipped with the filter mantle, can play the dust removal effect to the air, avoid the debris of macroparticle directly to get into in the heater, can play the guard action to the heater.
Optionally, the baking oven further comprises a drainage plate, the drainage plate extends up and down and extends along the extending direction of the baking channel, the upper end of the drainage plate is fixed in the box body, the lower end of the drainage plate is spaced from the bottom of the baking channel, a plurality of vertically spaced bosses are arranged on the side face of the drainage plate, and the cross section of each boss is in a shape of a sugar gourd.
Through adopting above-mentioned technical scheme, steam is from the in-process of flowing down in the box, direct downwardly flowing in the clearance between partly hot gas follow PCB board and the drainage board, another part hot gas flows along the boss of drainage board, can collide with the PCB board side, first aspect, can avoid the direct downwardly flowing of hot gas between two adjacent PCB boards to walk, the contact dynamics of hot gas and PCB board upper end has been increased, the hot gas of downwardly flowing and the hot gas that collides with the PCB board gathers simultaneously, can produce the turbulent flow, the contact time of hot gas and PCB upper end has been increased, thereby can improve the heating temperature of PCB board upper end, improve the homogeneity of PCB board heating. In the second aspect, the heating time of the upper end of the PCB can be shortened, so that the heating efficiency of the whole PCB can be improved. In the third aspect, before the printing ink is dried on the PCB, because the PCB is vertically placed, the printing ink on the PCB is slowly dripped downwards, so that the PCB is uneven in printing ink thickness, partial hot air can collide with the PCB by arranging the drainage plate, the dripping degree of the printing ink can be reduced, the uniformity of the printing ink on the PCB is improved, and the quality of the PCB can be improved.
Optionally, the protruding degree of the plurality of bosses from top to bottom is gradually reduced.
Through adopting above-mentioned technical scheme, the part temperature that gets larger with the heater distance on the PCB board can be less, and the temperature of PCB board increases from last decurrent gradually, therefore, the boss protruding degree of top is great for the hot-blast impact strength of PCB board upper end to the PCB board is bigger, contact time is longer more, can further improve the homogeneity of PCB heating temperature.
Optionally, the drainage board is equipped with a plurality ofly, and is a plurality of the drainage board interval sets up, adjacent form between the drainage board and supply the passageway that waits to toast the PCB board to pass through.
By adopting the technical scheme, the baking quality of a plurality of PCB boards can be improved simultaneously.
Optionally, the baking oven further comprises a plurality of fixing rods, wherein the fixing rods are perpendicular to the drainage plates, the fixing rods are arranged at intervals in the extending direction of the baking channel, and the upper ends of the drainage plates are fixedly connected with the fixing rods.
Through adopting above-mentioned technical scheme, the installation of the drainage board of being convenient for reduces the influence that causes the circulation of steam in the box simultaneously.
Optionally, the baking oven is provided with a plurality of baking ovens, the plurality of baking ovens are sequentially and continuously arranged in the extending direction of the baking channel, and each baking oven is internally provided with a temperature sensor.
Through adopting above-mentioned technical scheme, can reduce baking equipment's energy consumption, can avoid the excessive stoving of PCB board to influence the quality of PCB board simultaneously.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the heater and the blower are started, and the air flow is filtered through the first filter in the circulation process, so that the content of harmful gas in the air in the box body can be reduced, the hot air in the box body is kept in a clean state, and the circulation utilization of the hot air is realized. The ventilation valve on the air outlet end of the waste gas pipeline is opened, part of harmful gas can be discharged, fresh air can be supplemented by opening the air valve on the air inlet of the box body, and potential safety hazards caused by overhigh concentration of the harmful gas in the box body are prevented. Through being provided with the air-blower, fresh air directly gets into hot-blast pipeline internal heating circulation after the heating of heater, improves and toasts efficiency, avoids causing the interference to the temperature in the box simultaneously to reduce and toast the energy consumption.
2. The setting of funnel for in partly hot gas gets into exhaust duct through the funnel bottom, the air intake that another part hot gas got into hot air duct through the through-hole carries out further heating, circulates in the box again, makes the hot gas concentrate in the funnel and distributes again, helps the reposition of redundant personnel of hot gas in the box.
3. The arrangement of the drainage plate can improve the heating temperature of the upper end of the PCB and the heating uniformity of the PCB; the heating time of the upper end of the PCB can be shortened, so that the heating efficiency of the whole PCB can be improved; the uniformity of the ink on the PCB can be improved, so that the quality of the PCB can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a PCB baking apparatus in embodiment 1 of the present application;
fig. 2 is a schematic cross-sectional structure of the PCB baking apparatus of fig. 1;
fig. 3 is a schematic view of the structure of the PCB baking apparatus (hidden ventilation board) of fig. 1;
FIG. 4 is a schematic view of the hot air duct, heater and first filter of FIG. 1;
FIG. 5 is a schematic view of the exhaust conduit and funnel of FIG. 1;
fig. 6 is a schematic cross-sectional structure of a PCB baking apparatus and a PCB in embodiment 2 of the present application;
fig. 7 is an enlarged partial schematic view of the drainage plate and PCB board of fig. 6.
Reference numerals illustrate: 100. an oven; 1. a case; 1a, a baking channel; 2. a hot air duct; 3. a blower; 4. a heater; 5. an exhaust gas duct; 6. a first filter; 7. a ventilation board; 8. a funnel; 8a, through holes; 9. a filter cover; 10. a drainage plate; 101. a boss; 101a, upper side walls of the boss; 11. a fixed rod; 200. and a PCB board.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-7.
Example 1
The embodiment of the application discloses a PCB baking device. The PCB board baking apparatus includes a toaster 100, the toaster 100 including a case 1, a hot air duct 2, a blower 3, a heater 4, an exhaust air duct 5, and a first filter 6.
Referring to fig. 1, a tunnel type baking channel 1a is provided in a case 1, a conveying mechanism is used to continuously convey a PCB 200 into the baking channel 1a, and the PCB 200 is continuously conveyed out of the case 1 after being baked and dried in the case 1, so that continuous drying of the PCB 200 can be realized.
Install ventilation board 7 in the box 1, ventilation board 7 top is toasted passageway 1a, and PCB board 200 is in ventilation board 7 top transmission, and when conveying mechanism centre gripping PCB board 200 was unstable and the condition that the PCB board 200 dropped appears, PCB board 200 can drop to ventilation board 7 on, can play the guard action to PCB board 200.
Referring to fig. 2 and 3, the hot air duct 2 is located at a side of the baking passage 1a, and the hot air duct 2 may be located outside the case 1, in which case the hot air duct 2 is disposed in the case 1, to improve the degree of integration of the baking apparatus and to reduce heat dissipation of the baking apparatus. The lower end of the hot air duct 2 extends below the baking passage 1a, and the upper end extends above the baking passage 1 a.
The wind wheel of the blower 3 is positioned in the box 1 so that the air flow flowing from the lower end to the upper end is formed in the hot air pipeline 2. The heater 4 is arranged at the air inlet of the lower end of the hot air pipeline 2 and is used for heating the air flow of the lower end of the hot air pipeline 2. The blower 3 is turned on, so that the heater 4 heats the air flow before the air flow enters the hot air pipeline 2, the heated air flow flows to the upper end through the lower end of the hot air pipeline 2, flows downwards from the upper part of the box body 1 to the lower part, and circulates through the heating of the heater 4.
The air inlet end of the exhaust gas pipeline 5 extends to the lower part of the baking channel 1a, the air outlet end of the exhaust gas pipeline 5 is provided with an air vent valve, the PCB 200 can generate harmful gas in the heating process, and if the concentration of the harmful gas in the box body 1 is too high, the hidden danger can be caused. The ventilation valve is opened, part of hot air can be discharged outwards, and fresh air is supplemented, so that the content of harmful gas in the box body 1 can be controlled in a safe range.
The exhaust fan can be arranged at the air outlet end of the exhaust pipeline 5, and the hot air containing harmful gas in the box body 1 can be actively and stably pumped out of the box body 1, and the exhaust amount of the hot air can be adjusted according to the content of the harmful gas in the box body 1 by arranging the exhaust fan and the vent valve, so that leakage of the harmful gas is reduced, and pollution to the surrounding environment is reduced. The gas outlet end of the waste gas pipeline 5 can be connected with a waste gas treatment device to collect and treat harmful gas, and the harmful gas is prevented from being directly discharged into the air.
The first filter 6 is installed on the box body 1, flows from the hot air pipeline 2 to the first filter 6 after being heated, and can reduce the content of harmful gases in hot air through the filtering action of the first filter 6.
The bottom of the box body 1 is provided with an air inlet, the air inlet is provided with an air valve and a second filter, the air valve is opened, external fresh air can enter the box body 1, and the second filter can play a role in dust removal and filtration on the external air. By providing the damper, the fresh air supply amount can be regulated according to the discharge amount of the hot air in the case 1.
In an alternative embodiment, referring to fig. 4 and 5, a funnel 8 is installed at the bottom of the box 1, the baking channel 1a is communicated with the interior of the funnel 8, the bottom of the funnel 8 is communicated with the air inlet end of the exhaust gas pipeline 5, a through hole 8a is formed in the side wall of the funnel 8 in a penetrating manner, and an air inlet formed in the hot air pipeline 2 is connected with the through hole 8a formed in the funnel 8. The upper end of the side wall of the funnel 8 can be penetrated and provided with a vent, the air inlet arranged at the bottom of the box 1 is communicated with the vent arranged on the funnel 8 through a pipeline, and external fresh air can be conducted into the funnel 8 and positioned above the heater 4 and then enters the hot air pipeline 2 after being heated.
The funnel 8 is arranged, so that a part of hot air enters the waste gas pipeline 5 through the bottom of the funnel 8, and the other part of hot air enters the air inlet of the hot air pipeline 2 through the through hole 8a for further heating and then circulates in the box body 1, so that the hot air is concentrated in the funnel 8 and distributed, and the split flow of the hot air in the box body 1 is facilitated. Of course, in other embodiments, the funnel 8 may not be provided.
A filter cover 9 (see fig. 2) is attached to the funnel 8 at the through hole 8a, and the heater 4 is located below the filter cover 9. By arranging the filter cover 9, the air can be further dedusted, so that the large-particle sundries can be prevented from directly entering the heater 4, and the heater 4 can be protected.
Further, in an alternative embodiment, a plurality of ovens 100 may be provided, and a plurality of ovens 100 are sequentially arranged in succession in the extending direction of the toasting passage 1a, and each oven 1 is provided with a temperature sensor for monitoring the temperature in the oven 1. The PCB 200 is sequentially transmitted in the baking channels 1a of each oven 100, the heater 4 is utilized to heat the interior of the oven 100, the temperature in the oven 100 can be controlled through the monitoring of the temperature sensor, the temperature of the oven 100 is sequentially reduced in the extending direction of the baking channels 1a, the PCB 200 is firstly transmitted into the oven 100 with the highest temperature, the energy consumption of a baking device can be reduced, and meanwhile, the quality of the PCB 200 can be prevented from being influenced by excessive baking of the PCB 200.
The implementation principle of the PCB baking device provided by the embodiment of the application is as follows:
the conveying mechanism is utilized to continuously convey the PCB 200 to the baking channel 1a, the heater 4 and the blower 3 are started, the air flow in the box 1 is heated by the heater 4, flows from the lower end to the upper end of the hot air pipeline 2, flows back into the hot air pipeline 2 from top to bottom in the box 1, harmful gas can be generated in the heating process, the air flow is filtered by the first filter 6 in the circulating process, the content of the harmful gas in the air in the box 1 can be reduced, the clean state of hot air in the box 1 is kept, and the circulating utilization of the hot air is realized (the circulating direction can refer to the direction indicated by an arrow in fig. 2). Part of harmful gas can be discharged by opening a vent valve and an exhaust fan on the air outlet end of the exhaust pipeline 5, fresh air can be supplemented by opening a vent valve of the air inlet of the box body 1, and potential safety hazards caused by overhigh concentration of the harmful gas in the box body 1 are prevented. Through being provided with air-blower 3, fresh air directly gets into hot-blast pipeline 2 internal heating circulation after the heating of heater 4, improves and toasts efficiency, avoids causing the interference to the temperature in the box 1 simultaneously to reduce and toast the energy consumption.
Example 2
Referring to fig. 6 and 7, embodiment 2 is different from embodiment 1 in that a drainage plate 10 is provided in the case 1, the drainage plate 10 extends vertically and extends along the extending direction of the baking passage 1a, the upper end of the drainage plate 10 is fixed in the case 1, and in an alternative embodiment, the upper end of the drainage plate 10 may be fixed at the bottom of the filter. The lower end of the drainage plate 10 is spaced from the bottom of the baking channel 1a and is positioned between the upper ends of the two PCB boards 200, a plurality of vertically spaced bosses 101 are arranged on the side surface of the drainage plate 10 facing the PCB boards 200, the cross section of each boss 101 is in a sugar-gourd shape, and the number and the size of the bosses 101 can be set according to the size of the PCB boards. When the PCB 200 is transported in the baking channel 1a, the upper ends of the two PCBs 200 are always positioned on two sides of the lower end of the drainage plate 10. The number of the drainage plates 10 can be one or a plurality, the plurality of the drainage plates 10 are arranged at intervals, the interval direction is vertical to the drainage plates 10, and two sides of each drainage plate 10 are respectively provided with a PCB 200.
In an alternative embodiment, a plurality of fixing rods 11 are arranged in the box body 1, the fixing rods 11 are perpendicular to the flow guiding plates 10, the fixing rods 11 are arranged at intervals in the extending direction of the baking channel 1a, the upper ends of the flow guiding plates 10 are fixedly connected with the fixing rods 11, the flow guiding plates 10 are convenient to install, and meanwhile the influence on circulation of hot air in the box body 1 is reduced.
Because the distance between the lower end of the PCB 200 and the heater 4 is smaller, the distance between the upper end of the PCB 200 and the heater 4 is larger, so that when the PCB 200 is conveyed in the baking channel 1a, the heater 4 radiates heat to the lower end of the PCB 200 more greatly, the temperature of the upper end of the PCB 200 is lower than that of the lower end, the heating temperature of the PCB 200 is uneven, and the phenomenon that the corners of the PCB 200 are seriously warped is caused, so that the quality of the PCB 200 is influenced.
Through setting up the drainage board 10, the steam is from the in-process of flowing down in box 1, direct downwardly flowing in the clearance between partly hot gas follow PCB board 200 and the drainage board 10, another part hot gas flows along the boss 101 of drainage board 10 (the direction that the arrow point in the flow direction can refer to in fig. 7), can collide with PCB board 200 side, first aspect, can avoid the direct downwardly flowing of steam between two adjacent PCB boards 200 to go away, the contact dynamics of hot gas and PCB board 200 upper end has been increased, the hot gas that simultaneously downwardly flowing and the hot gas that collides with PCB board 200 are collected, can produce the turbulent flow, the contact time of hot gas and PCB upper end has been increased, thereby can improve the heating temperature of PCB board 200 upper end, improve the homogeneity of PCB board 200 heating. In the second aspect, the heating temperature of the upper end of the PCB 200 is increased, and the heating time of the upper end of the PCB 200 can be shortened, thereby increasing the heating efficiency of the entire PCB 200. In the third aspect, before the printing ink on the PCB 200 is dried, because the PCB 200 is vertically placed, the printing ink on the PCB 200 has a tendency of dripping slowly downwards, so that the PCB 200 has uneven thickness of the printing ink, and part of hot air collides with the PCB 200 by arranging the drainage plate 10, so that the dripping degree of the printing ink can be reduced, the uniformity of the printing ink on the PCB 200 is improved, and the quality of the PCB 200 can be improved.
In an alternative embodiment, the upper side wall of the boss 101 is provided with a concave arc surface, so that hot air can flow along the side wall of the boss 101, and the hot air can be promoted to strike the side surface of the PCB board 200.
Further, alternatively, the protruding degree of the plurality of bosses 101 from top to bottom is gradually reduced, the temperature of the part of the PCB 200 with a larger distance from the heater 4 is smaller, and the temperature of the PCB 200 is gradually increased from top to bottom, so that the protruding degree of the boss 101 above is larger, so that the impact strength of the hot air at the upper end of the PCB 200 to the PCB 200 is larger, the contact time is longer, and the uniformity of the heating temperature of the PCB can be further improved. In an alternative embodiment, the flow guiding plate 10 is hollow, and the boss 101 is used to guide the airflow to the surface of the PCB board 200 to be baked, so that the quality of the flow guiding plate 10 can be reduced, and the load on the box 1 can be reduced.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. A PCB baking apparatus comprising an oven (100), the oven (100) comprising:
the oven comprises an oven body (1), wherein a tunnel type baking channel (1 a) is arranged in the oven body (1), an air inlet is formed in the bottom of the oven body (1), and an air valve is arranged at the air inlet formed in the oven body (1);
the hot air pipeline (2) is positioned at the side of the baking channel (1 a), the lower end of the hot air pipeline (2) extends to the lower part of the baking channel (1 a), and the upper end of the hot air pipeline extends to the upper part of the baking channel (1 a);
a blower (3), wherein a wind wheel of the blower (3) is positioned in the box body (1) so as to form air flow flowing from the lower end to the upper end in the hot air pipeline (2);
the air inlet end of the exhaust gas pipeline (5) extends to the lower part of the baking channel (1 a), and the air outlet end of the exhaust gas pipeline (5) is provided with an air vent valve;
the first filter (6) is arranged on the box body (1) and is positioned above the baking channel (1 a), and the upper end of the hot air pipeline (2) is communicated with the first filter (6); the method comprises the steps of,
the heater (4) is arranged at the air inlet at the lower end of the hot air pipeline (2) and is used for heating the air flow at the lower end of the hot air pipeline (2);
the drainage plate (10) extends vertically and extends along the extending direction of the baking channel (1 a), the upper end of the drainage plate (10) is fixed in the box body (1), the lower end of the drainage plate (10) is spaced from the bottom of the baking channel (1 a), a plurality of vertically spaced bosses (101) are arranged on the side face of the drainage plate (10), and the cross section of each boss (101) is in a sugar-gourd shape; the degree of protrusion of the plurality of bosses (101) from top to bottom gradually decreases.
2. The device for baking the PCB according to claim 1, wherein a ventilation plate (7) is arranged in the box body (1), and the baking channel (1 a) is arranged above the ventilation plate (7).
3. The PCB baking device according to claim 1, further comprising a funnel (8), wherein the funnel (8) is mounted at the bottom of the box body (1), the baking channel (1 a) is communicated with the inside of the funnel (8), the bottom of the funnel (8) is communicated with the air inlet end of the waste gas pipeline (5), a through hole (8 a) is formed in the side wall of the funnel (8) in a penetrating manner, an air inlet formed in the hot air pipeline (2) is connected with the through hole (8 a) formed in the funnel (8), a ventilation opening is formed in the upper end of the side wall of the funnel (8), and the air inlet formed in the bottom of the box body (1) is communicated with the ventilation opening formed in the funnel (8) through a pipeline.
4. A PCB baking apparatus according to claim 3, characterized in that a filter cover (9) is mounted at the through hole (8 a) of the funnel (8), and the heater (4) is located below the filter cover (9).
5. The device for baking the PCB according to claim 1, wherein a plurality of the drainage plates (10) are arranged, the plurality of the drainage plates (10) are arranged at intervals, and a passage for the PCB (200) to be baked to pass through is formed between the adjacent drainage plates (10).
6. The device for baking the PCB according to claim 5, further comprising a plurality of fixing rods (11), wherein the fixing rods (11) are perpendicular to the drainage plates (10), the fixing rods (11) are arranged at intervals in the extending direction of the baking channel (1 a), and the upper ends of the drainage plates (10) are fixedly connected with the fixing rods (11).
7. The PCB baking apparatus according to any one of claims 1 to 6, wherein a plurality of the ovens (100) are provided, the plurality of ovens (100) being sequentially and continuously arranged in the extending direction of the baking passage (1 a), and a temperature sensor is provided in each of the ovens (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211459499.3A CN115815085B (en) | 2022-11-16 | 2022-11-16 | PCB baking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211459499.3A CN115815085B (en) | 2022-11-16 | 2022-11-16 | PCB baking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115815085A CN115815085A (en) | 2023-03-21 |
| CN115815085B true CN115815085B (en) | 2024-04-12 |
Family
ID=85529838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211459499.3A Active CN115815085B (en) | 2022-11-16 | 2022-11-16 | PCB baking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115815085B (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9413225U1 (en) * | 1994-08-16 | 1995-03-16 | Wiesenborn, Wilfried, 41812 Erkelenz | Drying unit |
| CN2287527Y (en) * | 1994-04-20 | 1998-08-12 | 徐连宽 | Fuel burning type paint spray and baking vanish booth |
| CN2364946Y (en) * | 1999-02-26 | 2000-02-23 | 李守祥 | Solar-energy direct distilling apparatus with deflector plate |
| CN204377891U (en) * | 2015-01-21 | 2015-06-10 | 秦皇岛赛尔机电设备有限公司 | A kind of hot blast fragment drying plant |
| CN104741275A (en) * | 2015-04-10 | 2015-07-01 | 无锡商业职业技术学院 | Novel painting and baking two-purpose room |
| CN205731908U (en) * | 2016-07-07 | 2016-11-30 | 四川德铭电子科技有限公司 | A kind of glue apparatus for baking that can shorten the glue curing time |
| CN205784475U (en) * | 2016-05-19 | 2016-12-07 | 江西洪安化工有限公司 | A kind of sodium hydrosulfite energy-saving drying blanking device |
| CN206882083U (en) * | 2017-04-14 | 2018-01-16 | 绍兴海儿铜铝材有限公司 | A kind of novel aluminum product exterior paint apparatus for baking |
| TWM573117U (en) * | 2018-10-15 | 2019-01-11 | 科嶠工業股份有限公司 | Oven device preventing ink volatilization particles from contaminating heater |
| CN208497394U (en) * | 2018-02-13 | 2019-02-15 | 广西飞塑汽车零部件有限公司 | Plastic dryer |
| CN111163592A (en) * | 2020-01-21 | 2020-05-15 | 深圳市瑞荣自动化有限公司 | PCB baking device |
| CN211147151U (en) * | 2019-10-12 | 2020-07-31 | 毛继明 | Quick circulation drying device of timber |
| CN211290893U (en) * | 2019-12-28 | 2020-08-18 | 常州卓升干燥设备有限公司 | Heated air circulation oven convenient to material is even dry |
| CN211831358U (en) * | 2020-04-22 | 2020-10-30 | 苏州宁虹电子科技有限公司 | PCB baking device |
| CN212618936U (en) * | 2020-07-03 | 2021-02-26 | 苏州格力士实业有限公司 | Environment-friendly cooling fan |
| CN213032216U (en) * | 2020-07-17 | 2021-04-23 | 内蒙古宏丰新材料有限公司 | Desulfurization equipment for graphite production |
| CN213861348U (en) * | 2020-10-08 | 2021-08-03 | 群翊工业股份有限公司 | Energy-saving baking equipment |
| CN214949734U (en) * | 2021-04-26 | 2021-11-30 | 南京阜太航空装备系统研究院有限公司 | Air exhaust device for condenser air duct |
| CN215490868U (en) * | 2021-07-20 | 2022-01-11 | 青岛美泰无纺布有限公司 | Oven is used in non-woven fabrics processing convenient to quick even stoving |
| CN215842417U (en) * | 2021-09-29 | 2022-02-18 | 山西易高煤层气有限公司 | Raw materials coal bed gas continuous drying device that becomes more meticulous |
| CN115077218A (en) * | 2022-08-23 | 2022-09-20 | 广东博硕涂装技术有限公司 | Hot air drying structure and method thereof |
| DE102021111730A1 (en) * | 2021-05-05 | 2022-11-10 | Lasco Heutechnik Gmbh | Fire protection device, hot air oven and operating procedures |
| CN115332119A (en) * | 2022-08-17 | 2022-11-11 | 绍兴中芯集成电路制造股份有限公司 | Clean wafer oven |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190186782A1 (en) * | 2017-12-18 | 2019-06-20 | Wei-Ching Lee | Flow guiding device for Air Conditioner, Method for Heat Dissipation Air Conditioner, and Supplementary Device |
-
2022
- 2022-11-16 CN CN202211459499.3A patent/CN115815085B/en active Active
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2287527Y (en) * | 1994-04-20 | 1998-08-12 | 徐连宽 | Fuel burning type paint spray and baking vanish booth |
| DE9413225U1 (en) * | 1994-08-16 | 1995-03-16 | Wiesenborn, Wilfried, 41812 Erkelenz | Drying unit |
| CN2364946Y (en) * | 1999-02-26 | 2000-02-23 | 李守祥 | Solar-energy direct distilling apparatus with deflector plate |
| CN204377891U (en) * | 2015-01-21 | 2015-06-10 | 秦皇岛赛尔机电设备有限公司 | A kind of hot blast fragment drying plant |
| CN104741275A (en) * | 2015-04-10 | 2015-07-01 | 无锡商业职业技术学院 | Novel painting and baking two-purpose room |
| CN205784475U (en) * | 2016-05-19 | 2016-12-07 | 江西洪安化工有限公司 | A kind of sodium hydrosulfite energy-saving drying blanking device |
| CN205731908U (en) * | 2016-07-07 | 2016-11-30 | 四川德铭电子科技有限公司 | A kind of glue apparatus for baking that can shorten the glue curing time |
| CN206882083U (en) * | 2017-04-14 | 2018-01-16 | 绍兴海儿铜铝材有限公司 | A kind of novel aluminum product exterior paint apparatus for baking |
| CN208497394U (en) * | 2018-02-13 | 2019-02-15 | 广西飞塑汽车零部件有限公司 | Plastic dryer |
| TWM573117U (en) * | 2018-10-15 | 2019-01-11 | 科嶠工業股份有限公司 | Oven device preventing ink volatilization particles from contaminating heater |
| CN211147151U (en) * | 2019-10-12 | 2020-07-31 | 毛继明 | Quick circulation drying device of timber |
| CN211290893U (en) * | 2019-12-28 | 2020-08-18 | 常州卓升干燥设备有限公司 | Heated air circulation oven convenient to material is even dry |
| CN111163592A (en) * | 2020-01-21 | 2020-05-15 | 深圳市瑞荣自动化有限公司 | PCB baking device |
| CN211831358U (en) * | 2020-04-22 | 2020-10-30 | 苏州宁虹电子科技有限公司 | PCB baking device |
| CN212618936U (en) * | 2020-07-03 | 2021-02-26 | 苏州格力士实业有限公司 | Environment-friendly cooling fan |
| CN213032216U (en) * | 2020-07-17 | 2021-04-23 | 内蒙古宏丰新材料有限公司 | Desulfurization equipment for graphite production |
| CN213861348U (en) * | 2020-10-08 | 2021-08-03 | 群翊工业股份有限公司 | Energy-saving baking equipment |
| CN214949734U (en) * | 2021-04-26 | 2021-11-30 | 南京阜太航空装备系统研究院有限公司 | Air exhaust device for condenser air duct |
| DE102021111730A1 (en) * | 2021-05-05 | 2022-11-10 | Lasco Heutechnik Gmbh | Fire protection device, hot air oven and operating procedures |
| CN215490868U (en) * | 2021-07-20 | 2022-01-11 | 青岛美泰无纺布有限公司 | Oven is used in non-woven fabrics processing convenient to quick even stoving |
| CN215842417U (en) * | 2021-09-29 | 2022-02-18 | 山西易高煤层气有限公司 | Raw materials coal bed gas continuous drying device that becomes more meticulous |
| CN115332119A (en) * | 2022-08-17 | 2022-11-11 | 绍兴中芯集成电路制造股份有限公司 | Clean wafer oven |
| CN115077218A (en) * | 2022-08-23 | 2022-09-20 | 广东博硕涂装技术有限公司 | Hot air drying structure and method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 密集烤房不同气流形式对温度气流组织的影响;何雪;李家春;胡捷;曹纪超;;机械设计与制造;20170108(第01期);第130-133页 * |
| 布袋除尘器结构改进的数值模拟研究;毛锐;刘根凡;邓翔;樊宁;;环境工程;20150322(第03期);第82-86+96页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115815085A (en) | 2023-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2332926C (en) | High heat transfer rate convection oven with grease management and smoke reduction capabilities | |
| FI58971B (en) | VENTILATIONSANORDNING SAERSKILT KOEKSFLAEKT | |
| TWI524044B (en) | Oven for fiber heat treatment | |
| EP0217802B1 (en) | Air exhausting means | |
| CN115815085B (en) | PCB baking device | |
| US8857424B2 (en) | Exhaust hood with adjustable supply air containment air streams and air curtains | |
| EP3359883B1 (en) | Grilling machine | |
| JPH02182370A (en) | Combined cooler and exhauster used with soldering machine | |
| US20210396394A1 (en) | Kitchen exhaust recovery system | |
| CN212517225U (en) | Sintering and annealing integrated furnace | |
| CN205299679U (en) | High efficiency combination formula smoke ventilator that airs exhaust | |
| CN211953589U (en) | Heat treatment equipment | |
| CN111351337A (en) | Heat treatment equipment | |
| CN217594176U (en) | Oil smoke filtering device installed on cake baking oven | |
| CN112628826A (en) | Smokeless and tasteless environment-friendly cooker | |
| CN105465861A (en) | Combined type smoke exhauster with high air exhausting efficiency | |
| CN218366985U (en) | Printing baking device convenient for waste gas removal for glass processing | |
| CN217423894U (en) | Drying device for metal printing sheet material conveyor | |
| CN217715816U (en) | Prevent scraping colored PCB board green oil drying device | |
| ES2317500T3 (en) | CONTINUOUS GAS COOKING OVEN, ESPECIALLY FOR RUBBER PRODUCTS. | |
| CN221324555U (en) | Range hood with air curtain | |
| AU2003246321B2 (en) | High heat transfer rate convection oven with grease management and smoke reduction capabilities | |
| CN215687087U (en) | Baking device of oven | |
| CN213147292U (en) | Mesh belt type drying furnace | |
| CN214387223U (en) | Frying and baking machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |