CN116951980B - Sintering furnace for silver paste preparation - Google Patents
Sintering furnace for silver paste preparation Download PDFInfo
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- CN116951980B CN116951980B CN202311204672.XA CN202311204672A CN116951980B CN 116951980 B CN116951980 B CN 116951980B CN 202311204672 A CN202311204672 A CN 202311204672A CN 116951980 B CN116951980 B CN 116951980B
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 43
- 239000004332 silver Substances 0.000 title claims abstract description 43
- 238000005245 sintering Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000003723 Smelting Methods 0.000 claims abstract description 15
- 238000007790 scraping Methods 0.000 claims abstract description 5
- 230000000670 limiting effect Effects 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000004321 preservation Methods 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/14—Charging or discharging liquid or molten material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a sintering furnace for preparing silver paste, which relates to the technical field of silver paste preparation and comprises a rectangular frame, wherein a chassis is fixedly arranged in the middle of the inner bottom wall of the rectangular frame, a channel steel ring is arranged right above the chassis, a furnace body is clamped in the channel steel ring, a pair of fixed shafts are fixedly arranged on two sides of the channel steel ring, and the rectangular frame is connected with the pair of fixed shafts through a swing arm mechanism; the central shaft is inserted in the middle of the upper wall in the smelting furnace body, the three-jaw disc is sleeved at the bottom end part of the central shaft, the stirring shafts are inserted at the three end parts of the three-jaw disc, a plurality of stirring paddles are fixedly arranged at the middle section and the lower section of each stirring shaft, the U-shaped scraping plates are fixedly arranged at the bottom end part of each stirring shaft, and the channel steel ring is connected with the central shaft through a driving mechanism. The utility model solves the problems of uneven stirring and inconvenient pouring of silver paste preparation, has high overall automation degree, reduces manual participation, ensures that the silver paste preparation is uniformly heated and stirred, and improves the quality of the silver paste.
Description
Technical Field
The utility model relates to the technical field of silver paste preparation, in particular to a sintering furnace for silver paste preparation.
Background
With the development of microwave circuits, microelectronic devices, and semiconductor integrated circuits toward high power, miniaturization, light weight, high density packaging, low cost, high performance, and high reliability, higher demands are being placed on semiconductor chip packaging processes. The silver paste is used as the bonding material of the semiconductor chip and the metal base, has good conductivity, stability and reliability, and has the characteristics of low-temperature sintering and high Wen Fuyi.
The Chinese patent discloses a silver paste sintering furnace (publication No. CN 208124887U), which comprises a furnace body, wherein a furnace door is hinged above the furnace body, a working box is arranged in the furnace body, a heating mechanism capable of heating the working box is fixed on the inside of the furnace body, a rotating lifting mechanism capable of rotating and lifting the working box is arranged at the bottom of the furnace body, a temperature adjusting mechanism capable of adjusting the temperature in the furnace body is arranged in the furnace body, a cooling mechanism capable of rapidly cooling the furnace body is further arranged outside the furnace body, the cooling mechanism comprises a cooling pipe and a cooling box, the cooling box is arranged outside the furnace body and is provided with cooling liquid, and the furnace body is provided with a first mounting hole and a second mounting hole.
When the existing silver paste sintering furnace is used for sintering silver paste, the following defects exist: 1. most of silver paste sintering furnaces are cylindrical furnace bodies which are fixedly arranged, and lack of stirring mechanisms can cause uneven heating of powdery silver materials in the sintering process, so that an ideal melting state cannot be achieved; 2. because the sintering furnace adopts fixed setting, inconvenient slope material pouring after silver thick liquid preparation is accomplished, degree of automation is lower, causes the potential safety hazard easily when the unloading.
Disclosure of Invention
The utility model aims to solve the technical problems that: when the silver paste is prepared, stirring is uneven, and pouring is inconvenient after the silver paste is prepared.
In order to solve the technical problems, the utility model provides a sintering furnace for preparing silver paste, which is realized by adopting the following technical scheme:
the sintering furnace for preparing silver paste comprises a rectangular frame, wherein a chassis is fixedly arranged in the middle of the inner bottom wall of the rectangular frame, a channel steel ring is arranged right above the chassis, a furnace body in rotary connection is clamped in the channel steel ring, symmetrically distributed elliptical sliding holes are formed in the two side walls of the rectangular frame, symmetrically distributed fixed shafts are fixedly arranged on the two sides of the channel steel ring, each fixed shaft penetrates through the corresponding elliptical sliding hole in a sliding mode and extends to the outer side of the rectangular frame, and the rectangular frame is connected with the pair of fixed shafts through a swing arm mechanism;
the utility model discloses a smelting furnace, including furnace body, upper wall, U-shaped steel channel ring, lower section, stirring axle, U-shaped scraping plate, driving mechanism and central pin connection are all set firmly to the middle section and the hypomere part of every stirring axle, the vertical center pin that runs through and rotate the connection is inserted in this internal roof middle part of furnace, the bottom tip cover of center pin is equipped with the three claw dish of concentric rigid coupling, three tip of three claw dish all insert and are equipped with vertical stirring axle that runs through and rotate the connection, every the middle section and the hypomere part of stirring axle all set firmly a plurality of evenly arranged stirring paddles, every the bottom tip of stirring axle all sets firmly U-shaped scraper blade, the steel channel ring passes through actuating mechanism and is connected with the center pin.
Preferably, the fixed swivel of concentric rigid coupling is equipped with to the middle part cover of the outer annular of smelting pot body, the outer annular of fixed swivel rotates the block in the channel-section steel intra-annular, the tip has set firmly the mouth of a furnace before the top surface of smelting pot body, the tip is equipped with the mouth of a furnace lid that the cooperation mouth of a furnace used before the top surface of smelting pot body, mouth of a furnace lid is articulated with the top surface activity of smelting pot body, the top surface of smelting pot body has set firmly vertical through connection's inlet pipe, the top mouth of inlet pipe is equipped with the T type stopper that the cooperation was used.
Preferably, the heat preservation guard shield of concentric rigid coupling is overlapped to the outer anchor ring end section part of smelting pot body, the inside of heat preservation guard shield has set firmly spiral induction coil, spiral induction coil is spiral form and evenly twines at the outer anchor ring end section part of smelting pot body, the front middle part of heat preservation guard shield has set firmly the heating controller, the upper and lower both ends portion of heating controller passes through wired mode and is connected with spiral induction coil's both ends portion electric wire.
Preferably, a notch gear which is concentrically fixedly connected is sleeved at the middle part of the fixed shaft, the notch gear is positioned at the outer side of the rectangular frame, pulley grooves are formed in the front inner wall and the rear inner wall of the elliptical sliding hole, a sliding ring which is concentrically fixedly connected is sleeved at the middle part of the fixed shaft, and the sliding ring is positioned in the elliptical sliding hole and is in sliding clamping fit with the corresponding pulley grooves;
the two side walls of the rectangular frame are fixedly provided with symmetrically distributed notch racks, the notch parts of the notch gears are in sliding connection with the middle section and the bottom section of the notch rack on the corresponding side, and the tooth parts of the notch gears are in meshed connection with the top section of the notch rack on the corresponding side.
Preferably, the swing arm mechanism comprises fixed swing arms, a pair of symmetrically distributed first L-shaped brackets are fixedly arranged in the middle of the back surfaces of two side walls of the rectangular frame, a first motor with an outwards penetrating output end is fixedly arranged on the inner side wall of each first L-shaped bracket, fixed swing arms are fixedly arranged at the end parts of motor shafts of the first motors, elliptical pin holes are formed in the fixed swing arms, and the outer end parts of the fixed shafts are slidably inserted into the corresponding elliptical pin holes.
Preferably, the inner top wall of the furnace body is sequentially provided with an outer gear ring and an inner gear ring which are concentrically and fixedly connected from inside to outside, tooth parts on the outer ring surface of the outer gear ring are arranged in a uniform gap, tooth parts on the inner ring surface of the inner gear ring are arranged in a uniform gap, and the gap parts of the outer gear ring and the gap parts of the inner gear ring are alternately distributed;
the top end part of each stirring shaft is sleeved with a planetary gear which is concentrically fixedly connected, each planetary gear is positioned between the outer gear ring and the inner gear ring, and the planetary gears are alternately meshed with the outer gear ring and the inner gear ring.
Preferably, the driving mechanism comprises a driving belt, a second L-shaped bracket is fixedly arranged in the middle of the back surface of the groove steel ring, a second motor is fixedly arranged on the inner top wall of the second L-shaped bracket, a driving shaft which is coaxially connected is fixedly arranged at the end part of a motor shaft of the second motor, a small-diameter belt pulley which is concentrically fixedly connected is sleeved at the top end part of the driving shaft, a large-diameter belt pulley which is concentrically fixedly connected is sleeved at the top end part of the central shaft, and the small-diameter belt pulley is synchronously connected with the large-diameter belt pulley through the driving belt.
Preferably, the U-shaped clamping rail with a forward opening is fixedly arranged on the rear side of the top wall of the second L-shaped bracket, a T-shaped sliding plate in transverse sliding connection is clamped in the opening of the U-shaped clamping rail, a driven rack in transverse distribution is fixedly arranged on the front side of the T-shaped sliding plate, an arc-shaped rack is fixedly arranged on the middle upper portion of the back of the melting furnace body, and the driven rack is meshed with the arc-shaped rack.
Preferably, the middle part of the T-shaped sliding plate is provided with an oval through hole which is transversely distributed, the front side wall and the rear side wall of the oval through hole are fixedly provided with a pair of symmetrically distributed reciprocating racks, one end part of each pair of reciprocating racks is fixedly provided with a pair of lengthened teeth, and the pair of lengthened teeth are in staggered distribution;
the bottom end of the driving shaft is sleeved with a limiting disc concentrically fixedly connected, the top surface of the limiting disc is fixedly provided with a plurality of limiting pins distributed in a notch state, and a plurality of limiting pins are alternately meshed and connected with a pair of reciprocating racks.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through the cooperation of the driving mechanism, the furnace body realizes reciprocating rotation, meanwhile, the three-jaw disc drives the stirring shaft and the stirring paddle to perform planetary rotation, and the stirring paddle uniformly stirs the powdery silver material to uniformly melt the powdery silver material into silver paste, so that the powdery silver material in the furnace body is heated more uniformly, and the sintering effect and quality are greatly improved;
2. according to the utility model, through the cooperation of the swing arm mechanism, the elliptical pin hole on the fixed swing arm and the fixed shaft form a limiting effect, so that the furnace body is driven to rise firstly and then incline forwards and upwards, silver paste liquid is poured downwards through the furnace mouth in an inclined mode, and the sintered silver paste in the furnace body is poured out conveniently in a subsequent processing procedure in a mode that the furnace body rises firstly and then inclines;
in conclusion, the utility model solves the problems of uneven stirring and inconvenient pouring of silver paste preparation, has high overall automation degree, reduces manual participation, ensures even heated stirring of silver paste preparation, and improves the quality of silver paste.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the overall structure of another view of the present utility model;
FIG. 3 is a schematic cross-sectional view of the overall structure of the present utility model;
FIG. 4 is an exploded view of a rectangular frame and channel ring connection of the present utility model;
FIG. 5 is an exploded view of the connection of the T-shaped slide plate and the limiting plate of the utility model;
FIG. 6 is a schematic view of a right side view of the furnace body of the present utility model;
FIG. 7 is a schematic diagram of a three-jaw plate and a plurality of paddles according to the utility model;
FIG. 8 is a schematic diagram of the meshing of the outer gear ring, inner gear ring and planetary gears of the present utility model;
number in the figure: 1. a rectangular frame; 11. a chassis; 12. a channel steel ring; 13. a fixed shaft; 14. a slip ring; 15. a notch gear; 16. a notched rack; 17. a first L-shaped bracket; 18. a first motor; 19. fixing a swing arm; 2. a furnace body; 21. fixing the swivel; 22. a thermal insulation shield; 23. a spiral induction coil; 24. a heating controller; 25. an arc-shaped rack; 26. a central shaft; 27. a three-jaw disc; 28. a stirring shaft; 29. stirring paddles; 210. a planetary gear; 211. an inner gear ring; 212. an outer gear ring; 3. a second L-shaped bracket; 31. a second motor; 32. a drive shaft; 33. a drive belt; 34. a limiting disc; 35. limiting pin shafts; 36. u-shaped clamping rail; 37. a T-shaped sliding plate; 38. a reciprocating rack; 39. and a driven rack.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Embodiment one: 1-8, specifically, the sintering furnace comprises a rectangular frame 1, a chassis 11 is fixedly arranged in the middle of the inner bottom of the rectangular frame 1, a groove steel ring 12 is arranged right above the chassis 11, a furnace body 2 in rotary connection is clamped in the groove steel ring 12, symmetrical distributed elliptical sliding holes are formed in two side walls of the rectangular frame 1, symmetrical distributed fixed shafts 13 are fixedly arranged on two sides of the groove steel ring 12, each fixed shaft 13 penetrates through the corresponding elliptical sliding hole in a sliding mode and extends to the outer side of the rectangular frame 1, and the rectangular frame 1 is connected with the pair of fixed shafts 13 through a swing arm mechanism;
the center pin 26 that vertically runs through and rotate and connect is inserted at roof middle part in the smelting pot body 2, the bottom tip cover of center pin 26 is equipped with the three claw dish 27 of concentric rigid coupling, three claw dish 27 are located smelting pot body 2 internal top, three tip of three claw dish 27 all insert and are equipped with vertical stirring axle 28 that runs through and rotate and connect, the middle section and the hypomere part of every stirring axle 28 have all set firmly a plurality of evenly arranged stirring rake 29, the bottom tip of every stirring axle 28 has all set firmly the U type scraper blade, the cell steel ring 12 passes through actuating mechanism and is connected with center pin 26.
In the specific implementation process, as shown in fig. 3 and 6, a heat preservation shield 22 concentrically fixedly connected is sleeved on the bottom section of the outer ring surface of the furnace body 2, a spiral induction coil 23 is fixedly arranged in the heat preservation shield 22, the spiral induction coil 23 is spirally and uniformly wound on the bottom section of the outer ring surface of the furnace body 2, a heating controller 24 is fixedly arranged in the middle of the front surface of the heat preservation shield 22, and the upper end and the lower end of the heating controller 24 are connected with two end electric wires of the spiral induction coil 23 in a wired mode; the heating controller 24 is started to further control the spiral induction coil 23 to be electrified, and the inner bottom of the furnace body 2 is continuously heated at high temperature, so that the powdered silver is melted under the action of high temperature.
The description is as follows: in this embodiment, the middle part cover of the outer annular surface of furnace body 2 is equipped with the fixed swivel 21 of concentric rigid coupling, the outer annular surface of fixed swivel 21 rotates the block in channel-section steel ring 12, furnace mouth has been set firmly to the top surface front end of furnace body 2, furnace body 2 becomes the slope form and pours silver thick liquid downwards through the furnace mouth, the top surface front end of furnace body 2 is equipped with the mouth lid that the cooperation furnace mouth used, the mouth lid is articulated with the top surface activity of furnace body 2, the top surface of furnace body 2 has set firmly vertical through connection's inlet pipe, the powdered silver material is added in the furnace body 2 through the inlet pipe, the top port of inlet pipe is equipped with the T type stopper of cooperation use.
Embodiment two: the present embodiment further includes, on the basis of the first embodiment:
in the specific implementation process, as shown in fig. 2 and 4, a notch gear 15 which is concentrically and fixedly connected is sleeved at the middle part of the fixed shaft 13, the notch gear 15 is positioned at the outer side of the rectangular frame 1, pulley grooves are formed in the front inner wall and the rear inner wall of the elliptical round hole, a sliding ring 14 which is concentrically and fixedly connected is sleeved at the middle part of the fixed shaft 13, and the sliding ring 14 is positioned in the elliptical round hole and is slidably clamped in the corresponding pulley groove; the sliding ring 14 slides along the pulley groove, so that the stability of the fixed shaft 13 sliding along the elliptical sliding hole is improved;
the two side walls of the rectangular frame 1 are fixedly provided with symmetrically distributed notch racks 16, the notch parts of the notch gears 15 are in sliding connection with the middle section and the bottom section parts of the notch racks 16 on the corresponding side, and the tooth parts of the notch gears 15 are in meshed connection with the top section parts of the notch racks 16 on the corresponding side; the furnace body 2 is lifted firstly, and then the notch gear 15 is meshed with the notch rack 16 to drive the fixed shaft 13, the groove steel ring 12 and the furnace body 2 to incline forwards and upwards;
the swing arm mechanism comprises fixed swing arms 19, symmetrically distributed first L-shaped brackets 17 are fixedly arranged in the middle of the back surfaces of the two side walls of the rectangular frame 1, first motors 18 with output ends penetrating outwards are fixedly arranged on the inner side walls of each first L-shaped bracket 17, fixed swing arms 19 are fixedly arranged at the end parts of motor shafts of each first motor 18, elliptical pin holes are formed in each fixed swing arm 19, and the outer end parts of each fixed shaft 13 are slidably inserted into the corresponding elliptical pin holes; the motor shaft of the first motor 18 drives the fixed swing arm 19 to swing upwards, and an elliptical pin hole on the fixed swing arm 19 and the fixed shaft 13 form a limiting function to drive the fixed shaft 13 and the sliding ring 14 to slide upwards along the elliptical sliding hole.
Embodiment III: the second embodiment further includes, on the basis of the second embodiment:
in the specific implementation process, as shown in fig. 6, 7 and 8, an external gear ring 212 and an internal gear ring 211 which are concentrically and fixedly connected are sequentially arranged on the inner top wall of the furnace body 2 from inside to outside, tooth parts on the outer ring surface of the external gear ring 212 are arranged in a uniform notch, tooth parts on the inner ring surface of the internal gear ring 211 are arranged in a uniform notch, and the notch parts of the external gear ring 212 and the notch parts of the internal gear ring 211 are alternately distributed;
the top end of each stirring shaft 28 is sleeved with a concentric fixedly connected planetary gear 210, each planetary gear 210 is positioned between an external gear ring 212 and an internal gear ring 211, and the planetary gears 210 are alternately meshed with the external gear ring 212 and the internal gear ring 211; the planetary gear 210 is alternately meshed with the external gear ring 212 and the internal gear ring 211 to drive the planetary gear 210 and the stirring shaft 28 to alternately rotate forward and backward, so that the stirring shaft 28, the stirring paddles 29 and the U-shaped scraping plates perform planetary rotation;
the driving mechanism comprises a driving belt 33, a second L-shaped bracket 3 is fixedly arranged in the middle of the back surface of the groove steel ring 12, a second motor 31 is fixedly arranged on the inner top wall of the second L-shaped bracket 3, a motor shaft of the second motor 31 upwards rotates to penetrate through the second L-shaped bracket 3, a coaxially connected driving shaft 32 is fixedly arranged at the end part of the motor shaft of the second motor 31, a small-diameter belt pulley which is concentrically fixedly connected is sleeved at the top end part of the driving shaft 32, a large-diameter belt pulley which is concentrically fixedly connected is sleeved at the top end part of the central shaft 26, and the small-diameter belt pulley is synchronously connected with the large-diameter belt pulley through the driving belt 33; the motor shaft of the second motor 31 drives the driving shaft 32, the limiting disc 34 and the small-diameter belt pulley to synchronously rotate, and the small-diameter belt pulley drives the large-diameter belt pulley, the central shaft 26, the three-jaw disc 27 and the three stirring shafts 28 to revolve through the driving belt 33.
Embodiment four: the third embodiment further includes:
in the specific implementation process, as shown in fig. 4 and 5, a U-shaped clamping rail 36 with a forward opening is fixedly arranged on the rear side of the top wall of the second L-shaped bracket 3, a T-shaped sliding plate 37 in transverse sliding connection is clamped in the opening of the U-shaped clamping rail 36, driven racks 39 in transverse distribution are fixedly arranged on the front side of the T-shaped sliding plate 37, an arc-shaped rack 25 is fixedly arranged on the middle upper part of the back of the furnace body 2, and the driven racks 39 are in meshed connection with the arc-shaped rack 25; the driven rack 39 is meshed to drive the arc-shaped rack 25, the melting furnace body 2 and the fixed swivel 21 to reciprocally rotate along the channel steel ring 12;
the middle part of the T-shaped slide plate 37 is provided with an oval through hole which is transversely distributed, the front side wall and the rear side wall of the oval through hole are fixedly provided with a pair of symmetrically distributed reciprocating racks 38, one end part of each pair of reciprocating racks 38 is fixedly provided with a pair of lengthened teeth, and the pair of lengthened teeth are in staggered distribution;
a limiting disc 34 which is concentrically fixedly connected is sleeved at the bottom end part of the driving shaft 32, a plurality of limiting pins 35 which are distributed in a notch state are fixedly arranged on the top surface of the limiting disc 34, and the limiting pins 35 are alternately meshed and connected with a pair of reciprocating racks 38; the plurality of limiting pins 35 on the limiting disc 34 are alternately meshed with a pair of reciprocating racks 38 on the T-shaped sliding plate 37 to drive the T-shaped sliding plate 37 and the driven racks 39 to slide left and right in a reciprocating manner along the U-shaped clamping rail 36.
Fifth embodiment: the working principle and the operation method of the utility model are as follows:
firstly, in an initial state, the furnace body 2 is placed on the top surface of the chassis 11, during silver paste preparation, powdery silver materials are added into the furnace body 2 through a feed pipe, a heating controller 24 is started, the spiral induction coil 23 is further controlled to be electrified, continuous high-temperature heating is carried out on the inner bottom of the furnace body 2, and the powdery silver materials are melted under the action of high temperature;
step two, starting a second motor 31, wherein a motor shaft of the second motor 31 drives a driving shaft 32, a limiting disc 34 and a small-diameter belt pulley to synchronously rotate, a plurality of limiting pins 35 on the limiting disc 34 are alternately meshed with a pair of reciprocating racks 38 on a T-shaped sliding plate 37 to drive the T-shaped sliding plate 37 and a driven rack 39 to slide left and right along a U-shaped clamping rail 36, and the driven rack 39 is meshed to drive an arc-shaped rack 25, a smelting furnace body 2 and a fixed rotating ring 21 to reciprocally rotate along a channel steel ring 12;
step three, the small-diameter belt pulley drives the large-diameter belt pulley, the central shaft 26, the three-jaw disc 27 and the three stirring shafts 28 to revolve through the driving belt 33, the planetary gear 210 is alternately meshed with the outer gear ring 212 and the inner gear ring 211 to drive the planetary gear 210 and the stirring shafts 28 to alternately rotate forward and backward, so that the stirring shafts 28, the stirring paddles 29 and the U-shaped scraping plates perform planetary rotation, and the stirring paddles 29 uniformly stir the powdery silver material to be uniformly melted into silver paste;
step four, after the silver paste is melted, a pair of first motors 18 are synchronously started, a motor shaft of each first motor 18 drives a fixed swing arm 19 to swing upwards, an elliptical pin hole on each fixed swing arm 19 and a fixed shaft 13 form a limiting function, the fixed shafts 13 and the sliding rings 14 are driven to slide upwards along elliptical sliding holes, the notch gears 15 are driven to slide upwards along notch racks 16, and the grooved steel rings 12 and the smelting furnace body 2 are synchronously driven to slowly rise;
step five, the furnace body 2 is lifted firstly, then the notch gear 15 is meshed with the notch rack 16 to drive the fixed shaft 13, the groove steel ring 12 and the furnace body 2 to incline forwards and upwards, so that the furnace body 2 is inclined and the silver paste liquid is poured downwards through the furnace mouth.
The utility model solves the problems of uneven stirring and inconvenient pouring of silver paste preparation, has high overall automation degree, reduces manual participation, ensures that the silver paste preparation is uniformly heated and stirred, and improves the quality of the silver paste.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (1)
1. The sintering furnace for preparing silver paste comprises a rectangular frame (1) and is characterized in that: the middle part of the inner bottom wall of the rectangular frame (1) is fixedly provided with a chassis (11), a channel steel ring (12) is arranged right above the chassis (11), a smelting furnace body (2) which is connected in a rotating way is clamped in the channel steel ring (12), two side walls of the rectangular frame (1) are provided with symmetrically distributed elliptical sliding holes, two sides of the channel steel ring (12) are fixedly provided with symmetrically distributed fixed shafts (13), each fixed shaft (13) penetrates through the corresponding elliptical sliding hole in a sliding way and extends to the outer side of the rectangular frame (1), and the rectangular frame (1) is connected with the pair of fixed shafts (13) through a swing arm mechanism;
the middle part of the inner top wall of the furnace body (2) is inserted with a central shaft (26) which vertically penetrates through and is rotationally connected, the bottom end part of the central shaft (26) is sleeved with a three-jaw disc (27) which is concentrically fixedly connected, the three-jaw disc (27) is positioned at the inner top part of the furnace body (2), three ends of the three-jaw disc (27) are respectively inserted with stirring shafts (28) which vertically penetrates through and are rotationally connected, the middle section and the lower section of each stirring shaft (28) are respectively fixedly provided with a plurality of stirring paddles (29) which are uniformly arranged, the bottom end part of each stirring shaft (28) is fixedly provided with a U-shaped scraping plate, and the channel steel ring (12) is connected with the central shaft (26) through a driving mechanism;
the middle part of the outer ring surface of the furnace body (2) is sleeved with a fixed swivel (21) which is concentrically fixedly connected, the outer ring surface of the fixed swivel (21) is rotationally clamped in a channel steel ring (12), the front end part of the top surface of the furnace body (2) is fixedly provided with a furnace mouth, the front end part of the top surface of the furnace body (2) is provided with a furnace mouth cover matched with the furnace mouth, the furnace mouth cover is movably hinged with the top surface of the furnace body (2), the top surface of the furnace body (2) is fixedly provided with a feeding pipe which is vertically and fixedly connected, and the top end opening of the feeding pipe is provided with a T-shaped plug matched with the furnace mouth;
the heat insulation protection cover (22) is fixedly connected with the outer annular bottom section of the furnace body (2) in a sleeved mode, a spiral induction coil (23) is fixedly arranged in the heat insulation protection cover (22), the spiral induction coil (23) is spirally and uniformly wound on the outer annular bottom section of the furnace body (2), a heating controller (24) is fixedly arranged in the middle of the front surface of the heat insulation protection cover (22), and the upper end and the lower end of the heating controller (24) are connected with two end electric wires of the spiral induction coil (23) in a wired mode;
the middle part of the fixed shaft (13) is sleeved with a notch gear (15) which is concentrically fixedly connected, the notch gear (15) is positioned at the outer side of the rectangular frame (1), the front inner wall and the rear inner wall of the elliptical sliding hole are provided with pulley grooves, the middle part of the fixed shaft (13) is sleeved with a sliding ring (14) which is concentrically fixedly connected, and the sliding ring (14) is positioned in the elliptical sliding hole and is in sliding clamping with the corresponding pulley grooves;
the two side walls of the rectangular frame (1) are fixedly provided with symmetrically distributed notch racks (16), the notch parts of the notch gears (15) are in sliding connection with the middle section and the bottom section of the notch racks (16) at the corresponding side, and the tooth parts of the notch gears (15) are in meshed connection with the top section of the notch racks (16) at the corresponding side;
the swing arm mechanism comprises fixed swing arms (19), a pair of symmetrically distributed first L-shaped brackets (17) are fixedly arranged in the middle of the back surfaces of two side walls of the rectangular frame (1), a first motor (18) with an output end penetrating outwards is fixedly arranged on the inner side wall of each first L-shaped bracket (17), a fixed swing arm (19) is fixedly arranged at the end part of a motor shaft of each first motor (18), an elliptical pin hole is formed in each fixed swing arm (19), and the outer end part of each fixed shaft (13) is slidably inserted into the corresponding elliptical pin hole;
an outer gear ring (212) and an inner gear ring (211) which are concentrically fixedly connected are sequentially arranged on the inner top wall of the smelting furnace body (2) from inside to outside, tooth parts on the outer ring surface of the outer gear ring (212) are arranged in a uniform notch mode, tooth parts on the inner ring surface of the inner gear ring (211) are arranged in a uniform notch mode, and the notch parts of the outer gear ring (212) and the notch parts of the inner gear ring (211) are distributed alternately;
the top end part of each stirring shaft (28) is sleeved with a planetary gear (210) which is concentrically and fixedly connected, each planetary gear (210) is positioned between an external gear ring (212) and an internal gear ring (211), and the planetary gears (210) are alternately meshed and connected with the external gear ring (212) and the internal gear ring (211);
the driving mechanism comprises a driving belt (33), a second L-shaped bracket (3) is fixedly arranged in the middle of the back surface of the channel steel ring (12), a second motor (31) is fixedly arranged on the inner top wall of the second L-shaped bracket (3), a coaxially-connected driving shaft (32) is fixedly arranged at the end part of a motor shaft of the second motor (31), a small-diameter belt pulley which is concentrically fixedly connected is sleeved at the top end part of the driving shaft (32), a large-diameter belt pulley which is concentrically fixedly connected is sleeved at the top end part of the central shaft (26), and the small-diameter belt pulley is synchronously connected with the large-diameter belt pulley through the driving belt (33);
the rear side of the top wall of the second L-shaped bracket (3) is fixedly provided with a U-shaped clamping rail (36) with a forward opening, a T-shaped sliding plate (37) which is transversely connected in a sliding manner is clamped in the opening of the U-shaped clamping rail (36), the front side of the T-shaped sliding plate (37) is fixedly provided with a driven rack (39) which is transversely distributed, the middle upper part of the back of the furnace body (2) is fixedly provided with an arc-shaped rack (25), and the driven rack (39) is meshed and connected with the arc-shaped rack (25);
the middle part of the T-shaped sliding plate (37) is provided with an oval through hole which is transversely distributed, the front side wall and the rear side wall of the oval through hole are fixedly provided with a pair of symmetrically distributed reciprocating racks (38), one end part of each pair of reciprocating racks (38) is fixedly provided with a pair of lengthened teeth, and the pair of lengthened teeth are staggered;
the bottom end part of the driving shaft (32) is sleeved with a limiting disc (34) which is concentrically fixedly connected, a plurality of limiting pins (35) which are distributed in a notch state are fixedly arranged on the top surface of the limiting disc (34), and a plurality of limiting pins (35) are alternately meshed and connected with a pair of reciprocating racks (38).
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| CN202311204672.XA CN116951980B (en) | 2023-09-19 | 2023-09-19 | Sintering furnace for silver paste preparation |
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| CN202311204672.XA CN116951980B (en) | 2023-09-19 | 2023-09-19 | Sintering furnace for silver paste preparation |
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| CN116951980B true CN116951980B (en) | 2024-01-30 |
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| Publication number | Publication date |
|---|---|
| CN116951980A (en) | 2023-10-27 |
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