CN211192387U - Constant temperature vacuum furnace - Google Patents
Constant temperature vacuum furnace Download PDFInfo
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- CN211192387U CN211192387U CN201921899016.5U CN201921899016U CN211192387U CN 211192387 U CN211192387 U CN 211192387U CN 201921899016 U CN201921899016 U CN 201921899016U CN 211192387 U CN211192387 U CN 211192387U
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- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 238000005192 partition Methods 0.000 claims description 5
- 238000005476 soldering Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A constant-temperature vacuum furnace comprises an upper furnace body assembly and a lower furnace body assembly, wherein the upper furnace body assembly comprises an upper furnace body (1), an air deflector (2), a wind shield (3), a circulating air pipe (4), a first heating assembly (5) and a circulating fan (6); the outer wall of the top plate of the upper furnace body (1) is provided with a plurality of grids (7); the outer wall of the top plate of the upper furnace body (1) is also matched with the air deflector (2); the air deflector (2) is provided with a plurality of air holes (8) communicated with the grids (7); the air deflector (2) and the wind shield (3) arranged on the upper wall of the air deflector enclose a cavity; the cavity is matched with the first heating component (5); the air inlet and the air outlet of the circulating air pipe (4) are respectively communicated with the end parts at the two sides of the cavity; the circulating air pipe (4) is matched with the circulating fan (6). The utility model has the advantages of simple structure and temperature compensation for the furnace body of the vacuum furnace.
Description
Technical Field
The utility model relates to a reflow welding machine technical field especially relates to a constant temperature vacuum furnace.
Background
Reflow soldering machines, also known as reflow soldering machines, provide a heated environment through a high temperature furnace body, which heats and melts solder paste, thereby allowing surface mount components and PCB pads to be reliably bonded together through solder paste alloys.
Along with the development of a reflow soldering machine, the vacuum reflow soldering machine is more and more widely used, and the vacuum furnace is formed by vacuumizing the vacuum reflow soldering machine on a traditional high-temperature furnace body.
Thus, the prior art is subject to improvement and advancement.
SUMMERY OF THE UTILITY MODEL
To the weak point in prior art, the utility model provides a constant temperature vacuum furnace, the purpose prevents the product temperature slump that leads to during the evacuation operation.
The utility model provides a following technical scheme:
a constant-temperature vacuum furnace comprises an upper furnace body assembly and a lower furnace body assembly, wherein the upper furnace body assembly comprises an upper furnace body (1), an air deflector (2), a wind shield (3), a circulating air pipe (4), a first heating assembly (5) and a circulating fan (6); the outer wall of the top plate of the upper furnace body (1) is provided with a plurality of grids (7); the outer wall of the top plate of the upper furnace body (1) is also matched with the air deflector (2); the air deflector (2) is provided with a plurality of air holes (8) communicated with the grids (7); the air deflector (2) and the wind shield (3) arranged on the upper wall of the air deflector enclose a cavity; the cavity is matched with the first heating component (5); the air inlet and the air outlet of the circulating air pipe (4) are respectively communicated with the end parts at the two sides of the cavity; the circulating air pipe (4) is matched with the circulating fan (6).
Preferably, the outer wall of the top plate of the upper furnace body (1) is formed with a groove (9), and a plurality of criss-cross partition plates (10) are arranged in the groove (9).
Preferably, the lower furnace body assembly comprises a lower furnace body (11), a second heating assembly (12) and a third heating assembly (13), and the second heating assembly (12) is arranged on the side wall of the lower furnace body (11); the bottom of the lower furnace body (11) is provided with the third heating component (13).
Preferably, a group of workpiece conveying guide rails (14) are arranged in the lower furnace body (11).
Preferably, a guide rail adjusting mechanism is further arranged in the lower furnace body (11), and the guide rail adjusting mechanism comprises a first base (15), a second base (16), a screw rod (17), a screw rod nut (18) and a sliding plate (19); the first base (15) and the second base (16) are oppositely arranged in the lower furnace body (11); two ends of the screw rod (17) are respectively and rotatably connected to the first base (15) and the second base (16), the screw rod (17) is in threaded fit with the screw rod nut (18), and the screw rod nut (18) is fixedly connected with the sliding plate (19); the first base (15) and the sliding plate (19) are respectively provided with one workpiece conveying guide rail (14).
Preferably, the first base (15) and the second base (16) are further provided with a guide post (20), and the sliding plate (19) is provided with a guide sleeve (21) which is in guiding fit with the guide post (20).
Preferably, still including first infrared heating subassembly (22) and second infrared heating subassembly (23), the side cooperation of going up the furnace body subassembly has first infrared heating subassembly (22), the side cooperation of furnace body subassembly has second infrared heating subassembly (23) down.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the continuous heating of the upper furnace body and the lower furnace body is realized through a plurality of groups of heating components.
2. The grid arranged on the outer wall of the top plate of the upper furnace body can store quantitative high-temperature air, so that the heat dissipation speed of the upper furnace body is delayed, and the heat preservation effect of the upper furnace body is improved.
3. Through the cooperation of aviation baffle, windshield, circulated air pipe and circulating fan, keep the high temperature air circulation flow in the grid of upper furnace body, guaranteed that the temperature of each department of upper furnace body is unanimous, prevent that local high temperature or local low temperature from causing the harmful effects to the quality of work piece.
Drawings
Fig. 1 is a schematic diagram of the mechanism of the present invention;
FIG. 2 is an exploded view of the upper furnace body upper part of the present invention;
FIG. 3 is a partial exploded view of the present invention;
FIG. 4 is a schematic view of the internal structure of the lower furnace body of the present invention;
the reference numbers in the figures are respectively: (1) the device comprises an upper furnace body, (2) an air deflector, (3) a wind shield, (4) a circulating air pipe, (5) a first heating assembly, (6) a circulating fan, (7) a grid, (8) an air hole, (9) a groove, (10) a partition board, (11) a lower furnace body, (12) a second heating assembly, (13) a third heating assembly, (14) a workpiece conveying guide rail, (15) a first base, (16) a second base, (17) a screw rod, (18) a screw rod nut, (19) a sliding plate, (20) a guide post, (21) a guide sleeve, (22) a first infrared heating assembly, (23) a second infrared heating assembly, (24) an upper shell, and (25) an adjusting wheel.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Examples
The constant-temperature vacuum furnace comprises an upper furnace body assembly and a lower furnace body assembly, wherein the upper furnace body assembly comprises an upper furnace body 1, an air deflector 2, a wind shield 3, a circulating air pipe 4, a first heating assembly 5 and a circulating fan 6. A groove 9 is formed in the outer wall of a top plate of the upper furnace body 1, a plurality of criss-cross partition plates 10 are arranged in the groove 9, and the groove 9 is divided into a plurality of grids 7 with the same shape and size by the partition plates. The top plate of the upper furnace body 1 is matched with the lower wall of the air deflector 2; the air deflector 2 is provided with a plurality of air holes 8 communicated with the grids 7; wherein, each air hole 8 has the same size, and the cross-sectional area thereof is far smaller than that of the grid 8. The upper wall of the air deflector 2 is connected with the wind shield 3, so that a cavity is formed between the air deflector 2 and the wind shield 3. The upper part of the wind shield 3 is also provided with the circulating air pipe 4, and an air inlet and an air outlet of the circulating air pipe 4 are respectively communicated with the end parts at two sides of the cavity; the upper part of the circulating air pipe 4 is provided with the circulating fan 6, and the circulating fan 6 is connected to an external power supply. The whole peripheral edge of the air deflector 2 is also connected with the lower end edge of the upper shell 24, the first heating component 5 is also arranged in the upper shell 24, and the first heating component 5 can be a ceramic heating pipe.
Further, the lower furnace body assembly comprises a lower furnace body 11, a second heating assembly 12 and a third heating assembly 13, and the second heating assembly 12 is arranged on the side wall of the lower furnace body 11; the bottom of the lower furnace body 11 is provided with the third heating assembly 13. Wherein, the second heating component 12 and the third heating component 13 can be ceramic heating pipes.
Furthermore, two workpiece conveying guide rails 14 are oppositely arranged in the lower furnace body 11. In actual operation, treat the back is opened with lower furnace body 11 to the last furnace body 1 of vacuum furnace, the work piece can along work piece transfer rail 14 slides in lower furnace body 11, simple straight line slides in the mode and more is suitable for automated production operation to improve production efficiency.
Further, a guide rail adjusting mechanism is also arranged in the lower furnace body 11, and the guide rail adjusting mechanism comprises a first base 15, a second base 16, a screw rod 17, a screw rod nut 18 and a sliding plate 19; the first base 15 and the second base 16 are oppositely arranged in the lower furnace body 11; two ends of the screw rod 17 are respectively and rotatably connected to the first base 15 and the second base 16. The screw rod 17 is fixedly connected with an adjusting wheel 25, the screw rod 17 is also in threaded fit with the screw rod nut 18, and the screw rod nut 18 is fixedly connected with the sliding plate 19; the first base 15 and the slide plate 19 are respectively provided with one of the workpiece transfer rails 14. When the adjusting wheel 25 is rotated, the screw rod 17 and the adjusting wheel 25 synchronously rotate, so that the screw rod nut and the sliding plate are driven to synchronously slide, the distance between the two workpiece conveying guide rails 14 is finally changed, and the adjusting mechanism has the advantages of simplicity and convenience in adjustment and good universality.
Furthermore, the first base 15 and the second base 16 are further provided with guide pillars 20, and two ends of the sliding plate 19 are respectively provided with guide sleeves 21 which are in guiding fit with the guide pillars 20, so that the precision and stability of the sliding plate 19 during sliding are improved.
Further, still including first infrared heating subassembly 22 and second infrared heating subassembly 23, the side cooperation of going up the furnace body subassembly has first infrared heating subassembly 22, the side cooperation of furnace body subassembly has second infrared heating subassembly 23 down, preheats the work piece that will send into in the vacuum furnace.
The utility model discloses during the use, go up furnace body 1 or be equipped with the evacuation hole down on the furnace body 11, this evacuation hole connection has outside vacuum pump in order to carry out the evacuation operation to the vacuum furnace. During the process of vacuumizing operation:
first, for the lower furnace body 11; the second heating unit 12 and the third heating unit 13 continuously heat the lower furnace body 11.
Secondly, the upper furnace body 1; an air storage cavity is formed among the grid 7 on the outer wall of the top plate of the upper furnace body 1, the cavity surrounded by the air guide plate 2 and the wind shield 3 and the circulating air pipe 4, the circulating fan 6 drives air in the storage cavity to flow circularly, the first heating assembly 1 heats the air in the storage cavity to a high-temperature state, the upper furnace body 1 is continuously heated by the high-temperature gas flowing circularly, and meanwhile, the temperature of each part of the upper furnace body 1 is ensured to be the same.
To sum up, the utility model provides a weak point that exists among the prior art, have characteristics such as structural design is reasonable, sealed effect is better.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a constant temperature vacuum furnace, is including last furnace body subassembly and lower furnace body subassembly, its characterized in that: the upper furnace body component comprises an upper furnace body (1), an air deflector (2), a wind shield (3), a circulating air pipe (4), a first heating component (5) and a circulating fan (6); the outer wall of the top plate of the upper furnace body (1) is provided with a plurality of grids (7); the outer wall of the top plate of the upper furnace body (1) is also matched with the air deflector (2); the air deflector (2) is provided with a plurality of air holes (8) communicated with the grids (7); the air deflector (2) and the wind shield (3) arranged on the upper wall of the air deflector enclose a cavity; the cavity is matched with the first heating component (5); the air inlet and the air outlet of the circulating air pipe (4) are respectively communicated with the end parts at the two sides of the cavity; the circulating air pipe (4) is matched with the circulating fan (6).
2. The vacuum furnace of claim 1, wherein: a groove (9) is formed in the outer wall of the top plate of the upper furnace body (1), and a plurality of criss-cross partition plates (10) are arranged in the groove (9).
3. The vacuum furnace of claim 1, wherein: the lower furnace body assembly comprises a lower furnace body (11), a second heating assembly (12) and a third heating assembly (13), and the second heating assembly (12) is arranged on the side wall of the lower furnace body (11); the bottom of the lower furnace body (11) is provided with the third heating component (13).
4. The vacuum furnace of claim 1, wherein: a group of workpiece conveying guide rails (14) are arranged in the lower furnace body (11).
5. The vacuum furnace of claim 4, wherein: a guide rail adjusting mechanism is also arranged in the lower furnace body (11), and the guide rail adjusting mechanism comprises a first base (15), a second base (16), a screw rod (17), a screw rod nut (18) and a sliding plate (19); the first base (15) and the second base (16) are oppositely arranged in the lower furnace body (11); two ends of the screw rod (17) are respectively and rotatably connected to the first base (15) and the second base (16), the screw rod (17) is in threaded fit with the screw rod nut (18), and the screw rod nut (18) is fixedly connected with the sliding plate (19); the first base (15) and the sliding plate (19) are respectively provided with one workpiece conveying guide rail (14).
6. The vacuum furnace of claim 5, wherein: the first base (15) and the second base (16) are further provided with guide pillars (20), and the sliding plate (19) is provided with guide sleeves (21) which are matched with the guide pillars (20) in a guiding mode.
7. The vacuum furnace of claim 1, wherein: still including first infrared heating subassembly (22) and second infrared heating subassembly (23), the side cooperation of going up the furnace body subassembly has first infrared heating subassembly (22), the side cooperation of furnace body subassembly has second infrared heating subassembly (23) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921899016.5U CN211192387U (en) | 2019-11-06 | 2019-11-06 | Constant temperature vacuum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921899016.5U CN211192387U (en) | 2019-11-06 | 2019-11-06 | Constant temperature vacuum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211192387U true CN211192387U (en) | 2020-08-07 |
Family
ID=71862498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921899016.5U Expired - Fee Related CN211192387U (en) | 2019-11-06 | 2019-11-06 | Constant temperature vacuum furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211192387U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059352A (en) * | 2020-11-04 | 2020-12-11 | 北京仝志伟业科技有限公司 | Multi-module packaging vacuum furnace for welding elements and using method thereof |
| CN114226906A (en) * | 2022-01-13 | 2022-03-25 | 诚联恺达科技有限公司 | Vacuum structure of welding furnace |
-
2019
- 2019-11-06 CN CN201921899016.5U patent/CN211192387U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059352A (en) * | 2020-11-04 | 2020-12-11 | 北京仝志伟业科技有限公司 | Multi-module packaging vacuum furnace for welding elements and using method thereof |
| CN114226906A (en) * | 2022-01-13 | 2022-03-25 | 诚联恺达科技有限公司 | Vacuum structure of welding furnace |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |