CN101081454B - Automatic protection device for avoid the overflow of tin - Google Patents
Automatic protection device for avoid the overflow of tin Download PDFInfo
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- CN101081454B CN101081454B CN2007100736049A CN200710073604A CN101081454B CN 101081454 B CN101081454 B CN 101081454B CN 2007100736049 A CN2007100736049 A CN 2007100736049A CN 200710073604 A CN200710073604 A CN 200710073604A CN 101081454 B CN101081454 B CN 101081454B
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- tin
- safety device
- automatic safety
- appearance
- lead
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Abstract
The present invention discloses one automatic protector for tin furnace set to avoid tin overflow, which comprises one tin furnace with side wall to define one tin liquid holding space and one tin feeder. The automatic protector set on the side wall of the tin furnace includes one acceptor, one sensing device and one control circuit. The acceptor set outside the side wall is used for accept overflow tin liquid; the sensing device is set inside the acceptor; and the control circuit is connected electrically between the sensing device and the tin feeder. After the tin liquid level exceeds preset height, overflowed tin liquid is held inside the acceptor to start the control circuit for the tin feeder to stop feeding tin so as to avoid further tin overflow. The present invention has simple first and capacity of preventing fault caused by tin overflow.
Description
Technical field
The present invention relates to avoid the to overflow automatic safety device of tin is used for a tin furnace device in particular to a kind of, but the excessive tin state of sensing tin stove, thus the control signal of sending stops to supply with the automatic safety device of tin liquor.
Background technology
Along with development in science and technology, electronic product becomes people's indispensable part of living.In these electronic products miscellaneous, circuit board is the core that makes its effect, has controlled the function and the running of electronic product.(printed circuit board PCB) is example, includes many assemblies and lead on the printed circuit board (PCB) with printed circuit board (PCB), assembly can be fixed on the plate by scolding tin, and assembly is connected with lead, and the circuit of original paper and printed circuit board (PCB) is electrically connected, form circuit loop.In the various welding methods, (wave soldering) is the most common with wave soldering.It utilizes motor to drive the excessive tin of fusion, and single ripple or double wave that the formation that makes is upwards kicked up to the assembly stitch place in the circuit board of oblique rising conveying, are filled out tin, to form solder joint.
Yet now in the wave soldering technology, the tin stove that production line uses does not possess usually when overflowing tin, but flat ripple and stream the protective device of Bo Xibo motor in the automatic disconnection tin furnace device.When the tin furnace tool with after printed circuit board (PCB) separates, what overflow dissolves liquid tin and can flow to automatically under the welding equipment, molten wiring of hindering control circuit causes equipment fault, and makes production line stop line; In addition, production technology personnel clear up when overflowing tin, need to flow to the block tin high temperature heating under the welding equipment, can remove, and then the melting loss circuit are connected again again, expend many times, cause the waste of production capacity, form the production loss of factory.
Hereat, proposing a kind ofly in tin furnace device, solve above-mentioned disappearance, to enhance productivity, is the target that this industry is needed solution badly.
Summary of the invention
The object of the invention is, a kind of automatic safety device that can be used for avoiding excessive tin is provided.
A kind of excessive tin automatic safety device is provided, comprises a body and a feeding device, body has wall on one side, and its inside defines the accommodation space in order to the splendid attire tin liquor.The excessive tin automatic safety device of avoiding that is applicable to this tin furnace device is to be installed in Bian Bishang, and it comprises an appearance and connects portion, a snapping portion, a sensing apparatus and a control circuit.The appearance portion of connecing is located at an outside of limit wall, connects in order to appearance in the accommodation space of body, surpasses the tin liquor of a predetermined altitude.Snapping portion has an excessive tin runner, and the tin liquor inflow above predetermined altitude is connect in the portion.Sensing apparatus then is located to hold and is connect in the portion.Control circuit be electrically connected at sensing apparatus and feeding device between.When tin liquor surpasses the excessive tin that is flowed out behind the predetermined altitude, at least partly just flow to hold to connect in the portion, and the start-up control circuit, make feeding device stop supplies tin liquor.
The present invention with this automatic safety device spiral-lock in the limit of tin furnace device body wall upper edge; when tin stove operate as normal; tin stove liquid level is under the predetermined altitude that automatic safety device defined; after in case the unusual or disconnected plate of printed circuit board (PCB) of tool takes place; the one side still rides over the first-class situation of liquid level; cause tin stove liquid level to rise; then the tin liquor of being overflowed can flow into to hold and connect in the portion through the tin runner that overflows; be arranged on several parallel wires that hold the portion that connects and make its electrical connection because of tin liquor exists; make control circuit send control signal; automatically cut off flat ripple of tin stove and the power supply that streams the Bo Xibo motor; and tin ripple motor is stopped operating; and then allow tin stove liquid level descend, and avoid continuing the tin that overflows, reduce the production line delay that the tin that overflows causes.
Description of drawings
The configuration diagram that Fig. 1 uses on the tin stove for automatic safety device of the present invention;
Fig. 2 is the configuration diagram of automatic safety device of the present invention;
Fig. 3 a is the circuit diagram of framework shown in Figure 1 when normal operation;
Fig. 3 b is the circuit diagram of framework shown in Figure 1 when overflowing tin.
The specific embodiment
A preferred embodiment of the present invention such as Fig. 1 and shown in Figure 2, it is to disclose a kind of automatic safety device 1 of avoiding tin furnace device 2 excessive tin.This automatic safety device 1 is applicable on the tin furnace device 2; this tin furnace device 2 comprises a body 21 and a feeding device 23; body 21 has wall 211 on one side; and its inside defines the accommodation space 20 in order to splendid attire tin liquor 10, and feeding device 23 comprises a flow-disturbing wave generation device 231, one a flat wave generation device 233 and a tin ripple motor 235.Automatic safety device 1 of the present invention is located on the limit wall 211 of tin furnace device 2 bodies 21, and comprises one and hold and to connect portion 11, a stretching device 13, a snapping portion 15, a sensing apparatus 17 and a control circuit 19.
Hold connecing the outside that portion 11 is located at the body 21 limit walls 211 of tin furnace device 2, connect in order to appearance in the accommodation space 20 of body 21, surpass the tin liquor 10 of a predetermined altitude.Snapping portion 15 meets portion 11 with appearance and is connected, but snapping portion 15 suitable hasps make and hold the portion that the connects 11 suitable outsides that hang on limit wall 211 in the Shu upper limb of the body 21 limit walls 211 of tin furnace device 2.Snapping portion 15 has an inverted U-shaped body 151, and two ends of one bottom are respectively equipped with two ribs 153 that make progress and bend, and makes a back side of body 151 bottoms constitute an excessive tin runner 155, in order to do making the tin that overflows just via excessive tin runner 155, flow to appearance and connects in the portion 11.
In present embodiment, hold to meet portion 11 and extend from body 151, after outwards and downwards bending was extended one section, upwards bending was extended again, to constitute a U type groove 111; Wherein two ends of U type groove 111 are provided with two blocks 113, match with a cross section of U type groove 111, with form can ccontaining liquid the space.Hold a upper shed that meets portion 11, be provided with a cover plate 115, can prevent that the tin liquor 10 that flows into U type groove 111 from spilling.
Stretching device 13 also is located to hold and is connect in the portion 11, and in order to above-mentioned three leads 171 of stretching, making it is that a state that is linearity in fact extends along a length direction.Stretching device 13 comprises plural spring; be located at lead 171 and 113 of blocks wherein respectively accordingly; so that the respectively clamping force of this lead 171 to be provided; strain at lead 171; conveniently to pick and place lead 171 and cleaning U type groove 111; and guarantee the straight of lead 171, avoid touching accidentally and start automatic safety device.
When tin stove operate as normal, tin liquor 10 does not reach in predetermined altitude, and control circuit 19 is conducting state, shown in Fig. 3 a; Yet, in case it is unusual that tool takes place, after perhaps separating between tool and product, still some rides over when liquid level is first-class to cause the situation that tin stove liquid level rises product, after making tin liquor 10 surpass predetermined altitude, the tin liquor 10 of being overflowed, the excessive tin runner 155 that can see through inverted U-shaped body 151 bottom rear flows into to hold and connects in the U type groove 111 of portion 11, three leads 171 that parallel setting that are arranged in the U type groove 111 are promptly connected after tin liquor 10 exists therebetween, control transistor 193 emitter-base bandgap gradings 196 ground connection under the effect of lead 171 in the control circuit 19, relay 191 outages of control circuit 19, the circuit of feeding device 23 is transferred to from path by relay 191 and opening circuit, thereby cut off the control power supply 197 of the tin ripple motor 235 of flow-disturbing wave generation device 231 and flat wave generation device 233, tin ripple motor is stopped operating.At this moment, the tin liquor face descends in the accommodation space 20 of tin furnace device 2, no longer include excessive tin situation and take place, and then the production line that the excessive tin of minimizing causes is incured loss through delay the raising production capacity.
Automatic safety device of the present invention not only can be used on the large-scale tin stove, also can be used in small hand tin stove, and it has wide range of applications.In addition, the foregoing description is implemented in aspect in other only in order to an aspect of the present invention to be described, automatic safety device can be used for the tin furnace device of other type, and the component count that automatic safety device comprised and module position do not exceed with the foregoing description.
The above embodiments only are used for exemplifying enforcement aspect of the present invention, and explain technical characterictic of the present invention, are not to be used for limiting category of the present invention.Any be familiar with this operator can unlabored change or the arrangement of the isotropism scope that all belongs to the present invention and advocated, interest field of the present invention should be as the criterion with claim.
Claims (12)
1. an automatic safety device of avoiding excessive tin is used for a tin furnace device, and wherein this tin furnace device comprises a body and a feeding device, and this body has wall on one side, and its inside defines the accommodation space in order to the splendid attire tin liquor; It is characterized in that this automatic safety device is located on this limit wall, and comprises: one holds and to meet portion, is located at an outside of this limit wall, connects the tin liquor that surpasses a predetermined altitude in the accommodation space of this body in order to appearance; One sensing apparatus is located at this appearance and is connect in the portion; And a control circuit, be electrically connected between this sensing apparatus and this feeding device; When this tin liquor surpasses the excessive tin that is flowed out behind this predetermined altitude, at least partly can flow to this appearance and connect in the portion, and start this control circuit, make this feeding device stop supplies tin liquor.
2. automatic safety device as claimed in claim 1 is characterized in that, other comprises a snapping portion, be connected with this appearance portion of connecing, but this snapping portion hasp makes the suitable outside that hangs on this limit wall of this appearance portion of connecing in a upper limb of this limit wall.
3. automatic safety device as claimed in claim 2; it is characterized in that; wherein this snapping portion has an inverted U-shaped body; two ends of one bottom of this body; be respectively equipped with two ribs that upwards bend; make a back side of this bottom constitute an excessive tin runner, this excessive tin just via this excessive tin runner, flow to this appearance and connects in the portion.
4. automatic safety device as claimed in claim 3 is characterized in that, wherein this system of appearance portion of connecing extends from this inverted U-shaped body, to constitute a U type groove; Wherein two ends of this U type groove are provided with two blocks, match with a cross section of this U type groove.
5. automatic safety device as claimed in claim 1 is characterized in that wherein this sensing apparatus comprises complex lead, and these lead systems independently are located at this appearance mutually and connect in the portion.
6. automatic safety device as claimed in claim 4; it is characterized in that wherein this sensing apparatus comprises complex lead, these leads are parallel to be located in the zone, a below of this U type groove; and respectively two ends of this lead are connected with this two block respectively, and wherein end system is connected with this control circuit.
7. automatic safety device as claimed in claim 5 is characterized in that, wherein this complex lead comprises two leads parallel to each other.
8. automatic safety device as claimed in claim 5 is characterized in that, wherein this complex lead comprises three leads parallel to each other.
9. automatic safety device as claimed in claim 1 is characterized in that, wherein this appearance connects a upper shed of portion, is provided with a cover plate.
10. automatic safety device as claimed in claim 6 is characterized in that, other comprises a stretching device, is located at this appearance and connects in the portion, and is suitable with these complex leads of stretching, and making it is that a state that is linearity in fact extends along a length direction.
11. automatic safety device as claimed in claim 10 is characterized in that, wherein this stretching device comprises plural spring, is located at this complex lead respectively accordingly and wherein between this block, so that the respectively clamping force of this lead to be provided.
12. automatic safety device as claimed in claim 5 is characterized in that, wherein this control circuit comprises: a relay comprises a control input interface and a control output interface; And one control transistor, comprise the collection utmost point, an emitter-base bandgap grading and a base stage, wherein this control input interface is connected with a control power supply, this control output interface is connected with this collection utmost point, this emitter-base bandgap grading and these leads one being connected wherein, all the other lead ground connection, this base stage is connected with this control power supply by a resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100736049A CN101081454B (en) | 2007-03-20 | 2007-03-20 | Automatic protection device for avoid the overflow of tin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100736049A CN101081454B (en) | 2007-03-20 | 2007-03-20 | Automatic protection device for avoid the overflow of tin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101081454A CN101081454A (en) | 2007-12-05 |
| CN101081454B true CN101081454B (en) | 2010-11-17 |
Family
ID=38911359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100736049A Expired - Fee Related CN101081454B (en) | 2007-03-20 | 2007-03-20 | Automatic protection device for avoid the overflow of tin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101081454B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029452B (en) * | 2009-09-25 | 2012-11-14 | 恒昌行精密工业有限公司 | Method for preventing tin overflow in welding operation |
| CN111555138B (en) * | 2020-05-27 | 2021-11-16 | 威海汇通电力设备股份有限公司 | Outdoor power distribution cabinet with severe impact circuit disconnection function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599966A (en) * | 1983-12-22 | 1986-07-15 | Lymn Peter A P | Solder leveller |
| CN2210511Y (en) * | 1994-09-30 | 1995-10-18 | 陈明松 | Structure improved automatic tin jet soldering machine |
| CN2445847Y (en) * | 2000-06-05 | 2001-09-05 | 王赐斌 | Tin furnace appts. |
-
2007
- 2007-03-20 CN CN2007100736049A patent/CN101081454B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599966A (en) * | 1983-12-22 | 1986-07-15 | Lymn Peter A P | Solder leveller |
| CN2210511Y (en) * | 1994-09-30 | 1995-10-18 | 陈明松 | Structure improved automatic tin jet soldering machine |
| CN2445847Y (en) * | 2000-06-05 | 2001-09-05 | 王赐斌 | Tin furnace appts. |
Non-Patent Citations (1)
| Title |
|---|
| JP特開平11-47922A 1999.02.23 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101081454A (en) | 2007-12-05 |
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