CN112935167B - Electronic kiln feeding equipment and burning-bearing plate thereof - Google Patents
Electronic kiln feeding equipment and burning-bearing plate thereof Download PDFInfo
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- CN112935167B CN112935167B CN202110246426.5A CN202110246426A CN112935167B CN 112935167 B CN112935167 B CN 112935167B CN 202110246426 A CN202110246426 A CN 202110246426A CN 112935167 B CN112935167 B CN 112935167B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J17/00—Forge furnaces
- B21J17/02—Forge furnaces electrically heated
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Abstract
The invention relates to the technical field of electronic kiln supporting facilities, in particular to electronic kiln feeding equipment and a burning bearing plate thereof. An electronic kiln feeding device comprises a frame and a pier extruding device. The pier extruding device comprises a burning bearing plate, an upper pressing rod, a lower pressing rod, a movable pressing block and a hydraulic system. The burning bearing plate is arranged on the bracket and is internally provided with a second cavity with square cross section outline. The hydraulic system comprises a hydraulic cylinder, a piston, an oil inlet channel and a one-way valve. According to the electronic kiln feeding equipment, the periphery of the preset square metal blank is extruded before extrusion upsetting forming of the metal blank, and then the middle of the preset square metal blank is extruded, so that the transverse difference and the longitudinal difference of the internal structure of the metal blank after forming are reduced, longitudinal cracks and transverse cracks are avoided, and the reliability of the metal blank is high. And compared with the traditional method for manufacturing the metal blank into a cylinder, the method for manufacturing the metal blank into the square body also avoids the waste of the metal blank and saves a great deal of cost.
Description
Technical Field
The invention relates to the technical field of electronic kiln supporting facilities, in particular to electronic kiln feeding equipment and a burning bearing plate thereof.
Background
The above-mentioned electronic kiln is a special facility for firing an electronic powder material for manufacturing electronic components, but is not limited to tunnel kiln and box type kiln for firing (also called sintering) electronic products such as ceramic inductance substrates, ceramic dielectric substrates, PTC (positive temperature coefficient thermistor), NTC (negative temperature coefficient thermistor), magnetic material blanks, magnetic material powder, lithium iron phosphate powder, and powder for various types of electronic products, and the like.
In the process of firing electronic products using an electronic kiln, it is generally necessary to use a feeding device, a metal blank of the electronic product to be fired in the kiln is fed to a conveyor belt by the feeding device, and then the metal blank is introduced into a hearth of the electronic kiln by the conveyor belt for sintering and forming, and then various types of products are manufactured. The traditional metal blank needs repeated extrusion and upsetting in the sintering and forming processes, so that the process can effectively refine the microstructure of the sintering sample and improve the comprehensive mechanical property of the sintering sample under the condition that the initial shape of the blank is kept unchanged. However, in order to ensure the transverse mechanical properties and anisotropic properties of the metal blanks, conventional hydraulic equipment or sintering equipment often upsets the metal blanks into cylinders during upsetting, but the cylindrical metal blanks are difficult to process subsequently, and the cut scraps are more, so that waste is caused. If the metal blank is urged to form a square body, longitudinal cracks can be generated in the upsetting process due to the fact that the distances between the outer edge of the square body and the vertical center line are different, and the metal blank is scrapped.
Disclosure of Invention
The invention provides an electronic kiln feeding device and a burning plate thereof, which are used for solving the problem that the existing metal blanks cannot be fully utilized.
The invention relates to an electronic kiln feeding device and a burning bearing plate thereof, which adopts the following technical scheme:
an electronic kiln feeding device comprises a frame and a pier extruding device. The pier extruding device comprises a burning bearing plate, an upper pressing rod, a lower pressing rod, a movable pressing block and a hydraulic system. The burning bearing plate is arranged on the bracket, a first cavity and a second cavity which are communicated up and down and coaxially arranged are arranged in the burning bearing plate, and the cross section profile of the second cavity is square; the cross-sectional area of the second chamber is greater than the cross-sectional area of the first chamber; the upper pressure bar can be movably arranged on the frame up and down, and the lower end of the upper pressure bar is inserted into the first cavity; the upper end of the lower pressure rod is provided with a square extrusion head, the square extrusion head is positioned in the second cavity, the inside of the square extrusion head is provided with a storage cavity with an upward opening, and the cross section profile of the storage cavity is the same as that of the first cavity; the movable pressing block is arranged in the storage cavity, and when the movable pressing block is at the lowest position of the movable pressing block relative to the lower pressing rod, the upper surface of the movable pressing block is flush with the upper end surface of the lower pressing rod, and the movable pressing block can slide in the first cavity and the storage cavity.
The hydraulic system comprises a hydraulic cylinder, a piston, an oil inlet channel and a one-way valve; the hydraulic cylinder is arranged on the frame and is positioned below the burning bearing plate, and the bottom of the hydraulic cylinder is externally connected with an oil pump; the piston is arranged at the lower end of the lower pressure rod and is positioned in the hydraulic cylinder; the oil inlet channel is communicated with the lower side of the piston and the storage cavity, and comprises a first channel, an expansion cavity and a second channel which are sequentially arranged from bottom to top; the cross-sectional area of the second passage is smaller than the cross-sectional area of the expansion chamber; the check valve is installed in the movable pressing block through the connecting rod, and is in the top of the up end of pressing down the upper end of pole at the up end of movable pressing block, and when the distance between the up end of movable pressing block and the up end of pressing down the pole is greater than predetermineeing the distance, the check valve is located the downside that only allows hydraulic oil to store the chamber from the downside of piston in the second passageway, and when the up end of movable pressing block and the up end of pressing down the pole parallel and level, the check valve is located the expansion intracavity and allows hydraulic oil to get into the downside of piston from storing the chamber via the clearance between check valve and the expansion chamber.
Further, the storage cavity comprises a third cavity and a fourth cavity which are coaxially arranged, the cross-sectional profile of the third cavity is identical to that of the first cavity, and the area of the cross section of the fourth cavity is smaller than that of the cross section of the third cavity; the movable pressing block comprises a pressing section and a connecting section, wherein the rising maximum height of the pressing section is not more than the height of the movable pressing block. And when the movable pressing block is at the lowest position of the movable pressing block relative to the lower pressing rod, the joint of the pressing section and the connecting section is flush with the lower end face of the third chamber, and the lower surface of the connecting section is spaced from the bottom face of the fourth chamber.
Further, the cross-sectional profile of the first chamber, the third chamber and the fourth chamber is circular.
Further, the upper end opening of the second channel is provided with a stop ring to prevent the one-way valve from sliding out of the second channel.
Further, the electronic kiln feeding equipment further comprises a heating device, wherein the heating device is arranged on the frame and heats the metal blanks through the burning plate.
Further, the cross-sectional area of the first passage is smaller than the cross-sectional area of the expansion chamber; the cross-sectional area of the second channel is greater than the cross-sectional area of the first channel.
The utility model provides a burn-up board that electronic kiln feeding equipment used, the outline of the cross section of burn-up board is circular, burn-up board inside has first cavity and the second cavity that link up from top to bottom, and coaxial setting, and the cross section profile of second cavity is the square. The cross-sectional area of the second chamber is greater than the cross-sectional area of the first chamber.
Further, the cross-sectional profile of the first chamber is circular, the diameter of the circle being smaller than the side length of the square.
The beneficial effects of the invention are as follows: the electronic kiln feeding equipment can solve the defect that the traditional extrusion upsetting device cannot upsetting the metal blank into a square body when extruding and upsetting the metal blank. Specifically, the electronic kiln feeding equipment disclosed by the invention extrudes the periphery of the preset square metal blank before extrusion upsetting forming of the metal blank, extrudes the middle part of the preset square metal blank, reduces the transverse difference and the longitudinal difference of the internal structure of the metal blank after forming, and avoids longitudinal cracks and transverse cracks, so that the quality difference between the periphery and the center of the square metal blank is reduced, and the reliability of the metal blank is high. And compared with the traditional method for manufacturing the metal blank into a cylinder, the method for manufacturing the metal blank into the square body also avoids the waste of the metal blank and saves a great deal of cost.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a cross-sectional view of an extrusion pier device of an embodiment of an electronic kiln feeding apparatus of the present invention.
Fig. 2 is a partial exploded view of an extrusion pier device of an embodiment of an electronic kiln feeding apparatus of the present invention.
Fig. 3 is a schematic structural view of a pressing rod of a pier extruding device in an embodiment of an electronic kiln feeding device of the present invention.
Fig. 4 is a schematic structural view of a bearing plate of the pier extruding device in an embodiment of the feeding device of the electronic kiln.
Fig. 5 is a partial state diagram of a first stage of operation of the pier extruding device of an embodiment of the electronic kiln feeding device of the present invention.
Fig. 6 is a partial state diagram of a second stage of the pier extruding device in an embodiment of the electronic kiln feeding device of the present invention.
Fig. 7 is a partial state diagram of a third stage of operation of the pier extruding device of the embodiment of the feeding device of the electronic kiln of the present invention.
In the figure: 1. a setter plate; 11. a first chamber; 12. a second chamber; 2. a pressing rod is arranged; 21. a square extrusion head; 22. a third chamber; 23. a fourth chamber; 3. a hydraulic cylinder; 31. pressing down a rod; 32. a piston; 33. a one-way valve; 34. an oil liquid port; 35. a connecting rod; 41. a first channel; 42. an expansion chamber; 43. a second channel; 5. a movable pressing block; 6. and (5) metal blanks.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of an electronic kiln feeding device of the present invention, as shown in fig. 1 to 7, includes a frame (not shown) and a pier extruding apparatus. The pier extruding device comprises a burning bearing plate 1, an upper pressing rod 2, a lower pressing rod 31, a movable pressing block 5 and a hydraulic system. The burning bearing plate 1 is arranged on the bracket, a first chamber 11 and a second chamber 12 which are coaxially arranged and vertically penetrated are arranged in the burning bearing plate 1, and the cross section outline of the second chamber 12 is square. The cross-sectional area of the second chamber 12 is larger than the cross-sectional area of the first chamber 11. The upper compression bar 2 is movably installed on the frame up and down, and the lower end of the upper compression bar 2 is inserted into the first chamber 11. The upper end of the lower pressure bar 31 is provided with a square extrusion head 21, the square extrusion head 21 is positioned in the second chamber 12, the square extrusion head 21 is internally provided with a storage cavity with an upward opening, and the cross section profile of the storage cavity is the same as that of the first chamber 11. The movable pressing block 5 is arranged in the storage cavity, when the movable pressing block 5 is at the lowest position of the movable pressing block 5 relative to the lower pressing rod 31, the upper surface of the movable pressing block 5 is flush with the upper end surface of the lower pressing rod 31, and the movable pressing block 5 can slide in the first cavity 11 and the storage cavity.
The hydraulic system comprises a hydraulic cylinder 3, a piston 32, an oil feed channel and a non-return valve 33. The hydraulic cylinder 3 is arranged on the frame and is positioned below the burning bearing plate 1, and the bottom of the hydraulic cylinder 3 is externally connected with an oil pump through an oil liquid port 34. A piston 32 is mounted to the lower end of the depression bar 31 and is located within the hydraulic cylinder 3. The oil inlet passage communicates with the lower side of the piston 32 and the reservoir chamber, and includes a first passage 41, an expansion chamber 42, and a second passage 43, which are disposed in this order from bottom to top. The cross-sectional area of the second passage 43 is smaller than the cross-sectional area of the expansion chamber 42. The cross-sectional area of the first passage 41 is smaller than the cross-sectional area of the expansion chamber 42. The cross-sectional area of the second channel 43 is larger than the cross-sectional area of the first channel 41. The check valve 33 is installed at the lower end of the movable pressing block 5 through the connecting rod 35, and when the upper end face of the movable pressing block 5 is located above the upper end face of the lower pressing rod 31 and the distance between the upper end face of the movable pressing block 5 and the upper end face of the lower pressing rod 31 is greater than a preset distance, the check valve 33 is located in the second channel 43 to only allow hydraulic oil to enter the storage cavity from the lower side of the piston 32, and when the upper end face of the movable pressing block 5 is flush with the upper end face of the lower pressing rod 31, the check valve 33 is located in the expansion cavity 42 to allow hydraulic oil to enter the lower side of the piston 32 from the storage cavity through a gap between the check valve 33 and the expansion cavity 42.
In the present embodiment, the storage chamber includes a third chamber 22 and a fourth chamber 23 coaxially disposed, the cross-sectional profile of the third chamber 22 being the same as the cross-sectional profile of the first chamber 11, the cross-sectional area of the fourth chamber 23 being smaller than the cross-sectional area of the third chamber 22. The movable pressing block 5 includes a pressing section and a connecting section, the maximum height of the pressing section rising does not exceed the height of the pressing section itself, and the metal powder 6 is prevented from entering the third chamber 22 when the pressing rod 31 and the movable pressing block 5 are integrally lowered. When the movable pressing block 5 is at the lowest position of the movable pressing block 5 relative to the lower pressing rod 31, the joint of the pressing section and the connecting section is flush with the lower end face of the third chamber 22, and the lower surface of the connecting section is spaced from the bottom face of the fourth chamber 23, so that hydraulic oil has enough compression space.
In this embodiment, the cross-sectional profile of the first chamber 11, the third chamber 22 and the fourth chamber 23 is circular, facilitating the sliding of the movable compact 5.
In the present embodiment, the upper end opening of the second passage 43 is provided with a stopper ring to prevent the check valve 33 from sliding out of the second passage 43.
In this embodiment, an electronic kiln feeding device further includes a heating device, where the heating device is disposed on the frame, and heats the metal blank 6 through the setter plate 1, so as to plastically deform the metal blank 6.
The outer contour of the cross section of a burning bearing plate 1 used by the electronic kiln feeding equipment is round, a first chamber 11 and a second chamber 12 which are vertically through and coaxially arranged are arranged in the burning bearing plate 1, and the cross section contour of the second chamber 12 is square. The cross-sectional area of the second chamber 12 is larger than the cross-sectional area of the first chamber 11. The cross-sectional profile of the first chamber 11 is circular with a diameter smaller than the side length of a square.
The use includes three stages, first stage, the conveyer belt is with metal embryo material 6 introduction in the first cavity 11, the oil pump starts, hydraulic oil gets into pneumatic cylinder 3 from fluid through 34, and get into fourth cavity 23 and push away movable briquetting 5 upwards along the oil feed passageway, movable briquetting 5 rises along the chamber wall of second cavity 12, after a period of time, close fluid through 34, upward depression bar 2 pre-compaction metal embryo material 6 downwards, metal embryo material 6 keeps in first cavity 11 under the effect of movable briquetting 5 and upward depression bar 2, heating device heats metal embryo material 6 through holding burning board 1 simultaneously.
In the second stage, the oil through hole 34 is opened, the oil pump is used for pumping out the hydraulic oil in the hydraulic cylinder 3, the one-way valve 33 prevents the hydraulic oil from flowing downwards from the fourth chamber 23, so that the lower pressure rod 31 and the movable pressure block 5 synchronously move downwards, the oil through hole 34 is closed again after the lower pressure rod 31 moves downwards to the corresponding position, the lower pressure rod 31 stops moving, the upper pressure rod 2 continuously presses downwards, the pressing speed of the upper pressure rod 2 is higher than that of the lower pressure rod 31 and the movable pressure block 5, so that the metal blank 6 is kept in a pressed state, and when the upper end face of the pressing section descends below the upper end face of the second chamber 12, the metal blank 6 firstly enters the outer end face of the pressing section, the cavity wall of the second chamber 12 and the cavity formed by the upper end of the square pressing head 21 under the pressing of the upper pressure rod 2.
In the third stage, the upper pressing rod 2 continues to press down the metal blank 6, the metal blank 6 in the first chamber 11 presses down the movable pressing block 5, and the movable pressing block presses the volume of hydraulic oil below the connecting section, that is, the volume of hydraulic oil in the fourth chamber 23 is compressed, so that the movable pressing block 5 slowly descends. When the check valve 33 connected to the movable pressing block 5 enters the expansion cavity 42, hydraulic oil enters the lower side of the piston 32 from the storage cavity through a gap between the check valve 33 and the expansion cavity 42, the upper pressing rod 2 continuously presses down the metal blank 6, the hydraulic oil entering the lower side of the piston 32 pushes up the lower pressing rod 31 again, and the pressing section is pressed to be level with the upper end face of the third cavity 22, so that the metal blank 6 is upsetted into a square shape.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The utility model provides an electronic kiln feeding equipment, includes frame, its characterized in that: the device also comprises a pier extruding device;
the pier extruding device comprises a burning bearing plate, an upper pressing rod, a lower pressing rod, a movable pressing block and a hydraulic system;
the burning bearing plate is arranged on the bracket, a first cavity and a second cavity which are communicated up and down and coaxially arranged are arranged in the burning bearing plate, and the cross section profile of the second cavity is square; the cross-sectional area of the second chamber is greater than the cross-sectional area of the first chamber; the upper pressure bar can be movably arranged on the frame up and down, and the lower end of the upper pressure bar is inserted into the first cavity; the upper end of the lower pressure rod is provided with a square extrusion head, the square extrusion head is positioned in the second cavity, the inside of the square extrusion head is provided with a storage cavity with an upward opening, and the cross section profile of the storage cavity is the same as that of the first cavity; the movable pressing block is arranged in the storage cavity, when the movable pressing block is at the lowest position of the movable pressing block relative to the lower pressing rod, the upper surface of the movable pressing block is level with the upper end surface of the lower pressing rod, and the movable pressing block can slide in the first cavity and the storage cavity;
the hydraulic system comprises a hydraulic cylinder, a piston, an oil inlet channel and a one-way valve; the hydraulic cylinder is arranged on the frame and is positioned below the burning bearing plate, and the bottom of the hydraulic cylinder is externally connected with an oil pump; the piston is arranged at the lower end of the lower pressure rod and is positioned in the hydraulic cylinder; the oil inlet channel is communicated with the lower side of the piston and the storage cavity, and comprises a first channel, an expansion cavity and a second channel which are sequentially arranged from bottom to top; the cross-sectional area of the second passage is smaller than the cross-sectional area of the expansion chamber; the check valve is installed in the movable pressing block through the connecting rod, and is in the top of the up end of pressing down the upper end of pole at the up end of movable pressing block, and when the distance between the up end of movable pressing block and the up end of pressing down the pole is greater than predetermineeing the distance, the check valve is located the downside that only allows hydraulic oil to store the chamber from the downside of piston in the second passageway, and when the up end of movable pressing block and the up end of pressing down the pole parallel and level, the check valve is located the expansion intracavity and allows hydraulic oil to get into the downside of piston from storing the chamber via the clearance between check valve and the expansion chamber.
2. The electronic kiln feed equipment of claim 1, wherein: the storage cavity comprises a third cavity and a fourth cavity which are coaxially arranged, the cross-sectional profile of the third cavity is the same as that of the first cavity, and the area of the cross section of the fourth cavity is smaller than that of the cross section of the third cavity; the movable pressing block comprises an extrusion section and a connecting section, when the movable pressing block is at the lowest position of the movable pressing block relative to the lower pressing rod, the joint of the extrusion section and the connecting section is flush with the lower end face of the third chamber, and the lower surface of the connecting section is spaced from the bottom face of the fourth chamber.
3. The electronic kiln feed equipment of claim 2, wherein: the maximum height of the rise of the extrusion section does not exceed the height of the extrusion section itself.
4. The electronic kiln feed equipment of claim 2, wherein: the cross-sectional profile of the first chamber, the third chamber and the fourth chamber is circular.
5. The electronic kiln feed equipment of claim 1, wherein: the upper end opening of the second channel is provided with a stop ring to prevent the one-way valve from sliding out of the second channel.
6. The electronic kiln feed equipment of claim 1, wherein: the heating device is arranged on the frame and heats the metal blanks through the burning plate.
7. The electronic kiln feed equipment of claim 1, wherein: the cross-sectional area of the first passage is smaller than the cross-sectional area of the expansion chamber; the cross-sectional area of the second channel is greater than the cross-sectional area of the first channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110246426.5A CN112935167B (en) | 2021-03-05 | 2021-03-05 | Electronic kiln feeding equipment and burning-bearing plate thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110246426.5A CN112935167B (en) | 2021-03-05 | 2021-03-05 | Electronic kiln feeding equipment and burning-bearing plate thereof |
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| Publication Number | Publication Date |
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| CN112935167A CN112935167A (en) | 2021-06-11 |
| CN112935167B true CN112935167B (en) | 2023-07-14 |
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| CN202110246426.5A Active CN112935167B (en) | 2021-03-05 | 2021-03-05 | Electronic kiln feeding equipment and burning-bearing plate thereof |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19922659B4 (en) * | 1999-05-18 | 2005-02-10 | Forschungsgesellschaft Umformtechnik Mbh | Hydraulic closing device for cross extrusion of workpieces |
| CN103217014B (en) * | 2013-04-11 | 2014-11-19 | 哈尔滨工业大学 | Composite crucible for casting titanium and titanium alloy in vacuum counter-gravity |
| CN103240378B (en) * | 2013-05-30 | 2015-01-07 | 上海保捷汽车零部件锻压有限公司 | Cold-forging mechanism for shaft parts of sedan double clutch transmission, and automatic system of cold-forging mechanism |
| CN205341770U (en) * | 2015-12-10 | 2016-06-29 | 重庆福悦安科技有限公司 | Parallel double -end cold -heading device |
| CN108380802B (en) * | 2018-03-30 | 2019-09-13 | 哈尔滨工业大学 | A kind of circulation revolving die squeezes upsetting forming device and method |
| CN208333106U (en) * | 2018-05-25 | 2019-01-04 | 深圳陶金材料科技有限公司 | A kind of tube furnace improving burner hearth |
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Effective date of registration: 20230531 Address after: 250000 Sanqing, No. 100, Gongye South Road, Lixia District, Jinan City, Shandong Province Room 1611, block a, Fengrun business building Applicant after: Jinan Yisida Automation Engineering Co.,Ltd. Address before: 436001 No.6, 3rd floor, gate 3, building 8, third village, iron mine workers Village, Zelin Town, Echeng District, Ezhou City, Hubei Province Applicant before: Cheng Guilan |
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