CN203031726U - Bottom ejection type permanent magnet wet pressing hydraulic machine - Google Patents
Bottom ejection type permanent magnet wet pressing hydraulic machine Download PDFInfo
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- CN203031726U CN203031726U CN 201320004577 CN201320004577U CN203031726U CN 203031726 U CN203031726 U CN 203031726U CN 201320004577 CN201320004577 CN 201320004577 CN 201320004577 U CN201320004577 U CN 201320004577U CN 203031726 U CN203031726 U CN 203031726U
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Abstract
The utility model discloses a bottom ejection type permanent magnet wet pressing hydraulic machine which comprises a main unit, a pump station, an injection system and an electric control cabinet. The electric control cabinet is electrically connected with the main unit, the pump station and the injection system, the pump station is connected with the main unit and the injection system, the injection system is connected with the main unit, the main unit comprises a pressure-bearing oil cylinder, a top extension oil cylinder and a mould, the mould is arranged between the pressure-bearing oil cylinder and the top extension oil cylinder, and the pressure-bearing oil cylinder is arranged above the top extension oil cylinder. When the hydraulic machine is used for forming, the moving direction of materials is as same as the extrusion direction of water, an inner arc surface of a magnetic shoe firstly reaches the density, an outer arc finally reaches the pressed density, and the water is easily extruded out to penetrate, so that forming time is shortened. Besides, defects such as cracks of product blanks are correspondingly decreased, and blank production quality and efficiency are obviously improved.
Description
Technical field
The utility model belongs to permanent magnetism Wet-pressing molding field, relates to a kind of lower top type permanent magnetism Wet-pressing molding hydraulic press specifically.
Background technology
China has become magnetic materials production big country, its output has accounted for more than 60% of the whole world, domestic have family surplus the permanent magnetism manufacturing enterprise 300 at present, the production of ferrite permanent-magnet materials has the preparation of hydrous slurry, Wet-pressing molding, sintering, mill processing, go-on-go, pack several big operations, wherein Wet-pressing molding is critical process, its investment will account for the over half of whole production line, the quality of moulding press is directly connected to properties of product, efficient and benefit, extremely manufacturing enterprise's concern of Wet-pressing molding press for this reason, 90 year initial stage, relevant large enterprise introduces Germany respectively, the forming hydraulic press that the U.S. and Japan produce, development to China's permanent magnetism industry has bigger facilitation, but for a long time, is that import or homemade Wet-pressing molding hydraulic press all are floating type moulding, be that upper cylinder compressing mold cavity floats downwards, lower die head maintains static, and forces the die cavity volume reducing, and the moisture in the permanent magnetism slip is extruded and moulding.
Yet this floating type Wet-pressing molding hydraulic press, when die cavity floats when pressing down, hydrous slurry and material particles move downward, moisture then makes progress away and is extruded out, and the trend of moisture and the direction of motion of material particles are just in time opposite, and the outer arc surface reaches density earlier during magnetic shoe shape formed product in addition, moisture is passed through its outer arc high-density layer, except molding time is long, and what is more important moisture causes defectives such as blank crackle when passing through outer arc by force easily, makes poor product quality.
Simultaneously, because die cavity floats, be difficult to accurately control the work loading height of slip in the die cavity, the green compact thickness deviation of moulding is bigger, and uniformity is poor.
The utility model content
For overcoming the defective that prior art exists, the utility model provides a kind of lower top type permanent magnetism Wet-pressing molding hydraulic press, has that molding time is short, efficient is high, and good product consistency, deviation are little, the characteristics that quality is high.
For achieving the above object, the technical scheme that adopts of the utility model is:
Lower top type permanent magnetism Wet-pressing molding hydraulic press, comprise main frame, pumping plant, material feeding system and electrical control cabinet, described electrical control cabinet is electrically connected with main frame, pumping plant, material feeding system, described pumping plant is connected with the material feeding system with main frame, described material feeding system is connected with main frame, it is characterized in that: described main frame comprises that pressure-bearing oil cylinder, top stretch oil cylinder and mould, and described mould is located at the pressure-bearing oil cylinder and stretch between the oil cylinder on the top, described pressure-bearing oil cylinder is positioned at the mould top, and the top is stretched oil cylinder and is positioned at the mould below.
Further, described mould comprises die, punch and swaging die, and described swaging die is enclosed within the punch periphery, cooperates with die and punch to form die cavity; The piston rod of described pressure-bearing oil cylinder connects die, and the piston rod that oil cylinder is stretched on described top connects punch.
Further, the operating pressure of described pressure-bearing oil cylinder is stretched the operating pressure of oil cylinder greater than the top.
Further, described swaging die is fixedly mounted on the main frame.
Further, described die is provided with at least one limbers, and described main frame also is equipped with the negative pressure of vacuum jar, and described negative pressure of vacuum jar comprises tank body and adapter, and described adapter is connected with the limbers.
Further, described material feeding system comprises mixer, material feeding pump; Described mixer is connected with the material feeding pump, is electrically connected with electrical control cabinet; Described material feeding pump is connected with main frame with pumping plant.
Compared with prior art, the utlity model has following beneficial effect:
One, lower top type permanent magnetism Wet-pressing molding hydraulic press of the present utility model comprises main frame, pumping plant, material feeding system and electrical control cabinet; Electrical control cabinet is electrically connected with main frame, pumping plant, material feeding system; Pumping plant is connected with the material feeding system with main frame, and the material feeding system is connected with main frame; Main frame comprises the pressure-bearing oil cylinder, pushes up and stretch oil cylinder and mould, and mould is located at the pressure-bearing oil cylinder and stretch between the oil cylinder on the top, and the pressure-bearing oil cylinder is positioned at the mould top, and the top is stretched oil cylinder and is located at the mould below; In the time of Wet-pressing molding, the pressure-bearing oil cylinder is motionless, the oil cylinder roof pressure that makes progress is stretched on the top, material movement is identical with the direction that moisture is extruded, and magnetic shoe product inner arc surface reaches density earlier, and outer arc reaches pressed density at last, moisture is extruded and is passed through easily, therefore molding time reduces, the corresponding minimizings of defective such as while product blank crackle, and quality and the efficient of blank production obviously improve.
Two, swaging die of the present utility model is fixedly mounted on the main frame, and existing floating type forming hydraulic press is difficult to accurately control the work loading height of slip in the die cavity because swaging die floats, and the green compact thickness error of moulding is big; Die cavity of the present utility model is fixed on the die holder, and the green compact consistency of thickness of moulding is good, and error is little.
Three, the utility model lower top type permanent magnetism Wet-pressing molding hydraulic press has lacked mould bases than existing equipment, has reduced the labour intensity of the assembling of die manufacturing cost and mould and Installation and Debugging; Also reduced the height of getting base simultaneously, operating personnel just stand on the ground can complete operation, has reduced the work of fabrication and installation hole and pedal, has reduced cost.
Four, the operating pressure of the pressure-bearing oil cylinder of the present utility model operating pressure of stretching oil cylinder greater than the top has guaranteed the quality of Wet-pressing molding process to improve the stability of making green compact.
Five, die of the present utility model is provided with at least one charging hole, and main frame also is equipped with the negative pressure of vacuum jar, and the negative pressure of vacuum jar comprises tank body and adapter, takes over to be connected with the limbers; The utlity model has self-draining function by the negative pressure of vacuum jar, easy to use.
Six, material feeding of the present utility model system comprises mixer, material feeding pump; Mixer is connected with the material feeding pump, is electrically connected with electrical control cabinet; The material feeding pump is connected with main frame with pumping plant; The feasible characteristics that the utlity model has automatic-feeding, the automaticity height is enhanced productivity.
Description of drawings
Fig. 1 is the structural representation of existing Wet-pressing molding hydraulic press;
Fig. 2 is the structural representation of the utility model main frame;
Mark among the figure: 1, hydrous slurry, 2, the pressure-bearing oil cylinder, 3, die, 4, die cavity, 5, die holder, 6, the top stretches oil cylinder, 7, machine base, 8, punch.
The specific embodiment
The utility model will be further described below in conjunction with the drawings and the specific embodiments.
Fig. 1 is existing floating type Wet-pressing molding hydraulic press, and die cavity and die move downward under the effect of oil cylinder together, and hydrous slurry and material particles move downward, and finish forming process.
In conjunction with Fig. 2, lower top type permanent magnetism Wet-pressing molding hydraulic press of the present utility model comprises main frame, pumping plant, material feeding system and electrical control cabinet; Electrical control cabinet is electrically connected with main frame, pumping plant, material feeding system, and pumping plant is connected with the material feeding system with main frame, and the material feeding system is connected with main frame; Main frame comprises pressure-bearing oil cylinder 2, pushes up and stretch oil cylinder 6 and mould, and mould is located at pressure-bearing oil cylinder 2 and stretch between the oil cylinder 6 on the top, and pressure-bearing oil cylinder 2 is positioned at the mould top, and the top is stretched oil cylinder 6 and is positioned at the mould below.
Further, mould comprises die 2, punch 8 and swaging die 4, and swaging die 4 is enclosed within punch 8 peripheries, cooperates with die 2 and punch 8 to form die cavity; The piston rod of pressure-bearing oil cylinder 2 connects die 3, and the piston rod that oil cylinder 6 is stretched on the top connects punch 8.The operating pressure of pressure-bearing oil cylinder 2 is stretched the operating pressure of oil cylinder 6 greater than the top.Swaging die 4 is fixedly mounted on the main frame by die holder 5.Die 2 is provided with at least one limbers; Main frame also is equipped with the negative pressure of vacuum jar, and the negative pressure of vacuum jar comprises tank body and adapter, takes over to be connected with the limbers; Be preferably and make the fabricating yard neat, two-shipper connection peace is only joined a negative-pressure cup, and automatic draining during use opens weekly that the end flanges water cleans once under the tank body, removes a jar inner product thing, and it is reliable to guarantee to draw water.
The material feeding system comprises mixer, material feeding pump; Mixer is connected with the material feeding pump, is electrically connected with electrical control cabinet; The material feeding pump is connected with main frame with pumping plant.The sealing everywhere of material feeding system is extremely important, in case seepage, material feeding is just unreliable; Must guarantee simultaneously to expect with purity, never allowing has steel ball and fibre object in the slip, the easiest like this mould material hole that causes stops up, the life-span of switch valve also can greatly reduce.
Pumping plant of the present utility model is made up of high-pressure oil pump group of motors, fuel tank, integrated package, Hydraulic Elements etc., and pumping plant adopts board-like independent hydraulically controlled element, does not use the superposing type hydraulic part substantially, overhauls debugging conveniently succinctly; Hydraulic Elements on the pumping plant are finished permanent magnet product wet pressing pressing under magnetic field by electrical control cubicles PLC coded program and liquid electricity cross complaint.High-pressure oil pump forbids to use poor oil in bulk, otherwise will have a strong impact on stability and reliability, seriously reduces the service life of hydraulic part.
Electrical control cabinet adopts the PLC machine, as preferably, adopts the PLC machine of import Omron.The fixing of element, arrange and be convenient to repair and check that the cabinet front is provided with various functionality buttons, magnetization, demagnetization electric current, voltage demonstration, change-over switch, time relay magnetic, exercises show, for adjust, use when checking.
The utility model is in the process of moulding, swaging die 4 and die 3 maintain static, punch 8 is stretched under the effect of oil cylinder 6 upwards roof pressure on the top, hydrous slurry 1 is identical with the direction that moisture is extruded, and magnetic shoe product inner arc surface reaches density earlier, and outer arc reaches pressed density at last, moisture is extruded and is passed through easily, therefore molding time reduces, the corresponding minimizings of defective such as while product blank crackle, and quality and the efficient of blank production obviously improve.The results showed that production efficiency of the present utility model enhances productivity 20% than floating type Wet-pressing molding; The green compact consistency of thickness of moulding is good, and error is less than 0.10mm, and the green compact thickness error of existing floating type Wet-pressing molding is generally about 0.5mm.The utility model has reduced the labour intensity of die manufacturing cost and mould assembling level Installation and Debugging without mould bases; The floating type low 250-280mm of base aspect ratio that gets of the present utility model simultaneously, operating personnel just stand on the ground can complete operation, has reduced the work of fabrication and installation hole and pedal, has reduced cost.
Claims (6)
1. lower top type permanent magnetism Wet-pressing molding hydraulic press, comprise main frame, pumping plant, material feeding system and electrical control cabinet, described electrical control cabinet is electrically connected with main frame, pumping plant, material feeding system, described pumping plant is connected with the material feeding system with main frame, described material feeding system is connected with main frame, it is characterized in that: described main frame comprises that pressure-bearing oil cylinder, top stretch oil cylinder and mould, and described mould is located at the pressure-bearing oil cylinder and stretch between the oil cylinder on the top, described pressure-bearing oil cylinder is positioned at the mould top, and the top is stretched oil cylinder and is positioned at the mould below.
2. lower top type permanent magnetism Wet-pressing molding hydraulic press according to claim 1, it is characterized in that: described mould comprises die, punch and swaging die, described swaging die is enclosed within the punch periphery, cooperates with die and punch to form die cavity; The piston rod of described pressure-bearing oil cylinder connects die, and the piston rod that oil cylinder is stretched on described top connects punch.
3. lower top type permanent magnetism Wet-pressing molding hydraulic press according to claim 1 and 2, it is characterized in that: the operating pressure of described pressure-bearing oil cylinder is stretched the operating pressure of oil cylinder greater than the top.
4. lower top type permanent magnetism Wet-pressing molding hydraulic press according to claim 2, it is characterized in that: described swaging die is fixedly mounted on the main frame.
5. lower top type permanent magnetism Wet-pressing molding hydraulic press according to claim 2, it is characterized in that: described die is provided with at least one limbers, described main frame also is equipped with the negative pressure of vacuum jar, and described negative pressure of vacuum jar comprises tank body and adapter, and described adapter is connected with the limbers.
6. lower top type permanent magnetism Wet-pressing molding hydraulic press according to claim 1 is characterized in that: described material feeding system comprises mixer, material feeding pump; Described mixer is connected with the material feeding pump, is electrically connected with electrical control cabinet; Described material feeding pump is connected with main frame with pumping plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004577 CN203031726U (en) | 2013-01-06 | 2013-01-06 | Bottom ejection type permanent magnet wet pressing hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004577 CN203031726U (en) | 2013-01-06 | 2013-01-06 | Bottom ejection type permanent magnet wet pressing hydraulic machine |
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| Publication Number | Publication Date |
|---|---|
| CN203031726U true CN203031726U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320004577 Expired - Fee Related CN203031726U (en) | 2013-01-06 | 2013-01-06 | Bottom ejection type permanent magnet wet pressing hydraulic machine |
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| CN (1) | CN203031726U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153414A (en) * | 2019-05-27 | 2019-08-23 | 佛山市南海区首创机械有限公司 | Lower top type magnetic material wet type hydraulic press |
| CN113394016A (en) * | 2021-06-10 | 2021-09-14 | 安徽群兴磁材科技有限公司 | Wet pressing forming system for production of motor arc-shaped magnetic shoes |
-
2013
- 2013-01-06 CN CN 201320004577 patent/CN203031726U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153414A (en) * | 2019-05-27 | 2019-08-23 | 佛山市南海区首创机械有限公司 | Lower top type magnetic material wet type hydraulic press |
| CN113394016A (en) * | 2021-06-10 | 2021-09-14 | 安徽群兴磁材科技有限公司 | Wet pressing forming system for production of motor arc-shaped magnetic shoes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YIBIN DAZHENG ELECTRONIC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: ZHENG MINGQUAN Effective date: 20141102 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141102 Address after: Yibin City, Sichuan Province, the 644000 Industrial Development Zone Hongfeng Road East Patentee after: Yibin Dazheng Electronic Equipment Co., Ltd. Address before: 644000 Yibin City, Sichuan Province, Rong Cuiping Road East of Zhongshan Ecological Park District 11 Building 1 unit 101 Patentee before: Zheng Mingquan |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20210106 |