CN219256541U - Vacuum-pumping equipment acting on target forming unit in isostatic pressing machine - Google Patents
Vacuum-pumping equipment acting on target forming unit in isostatic pressing machine Download PDFInfo
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- CN219256541U CN219256541U CN202320657788.8U CN202320657788U CN219256541U CN 219256541 U CN219256541 U CN 219256541U CN 202320657788 U CN202320657788 U CN 202320657788U CN 219256541 U CN219256541 U CN 219256541U
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- rectangular groove
- pressure
- target forming
- negative pressure
- forming unit
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- 238000005086 pumping Methods 0.000 title claims abstract description 23
- 238000000462 isostatic pressing Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 239000013077 target material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- Press Drives And Press Lines (AREA)
Abstract
The utility model provides vacuum pumping equipment acting on a target forming unit in an isostatic pressing machine, and belongs to the technical field of isostatic pressing machine target forming. The vacuum pumping unit comprises a pressure-resistant housing and two groups of negative pressure cavities arranged in the pressure-resistant housing, and a metal partition plate is arranged between the two groups of negative pressure cavities. The reciprocating type negative pressure vacuumizing device is adopted, so that vacuumizing operation on target powder is performed on the basis of small air flow rate, the service life of the device is prolonged, the powder utilization rate is improved compared with a traditional axial flow operation mode, and environmental pollution is prevented.
Description
Technical Field
The utility model relates to the technical field of isostatic pressing machine target forming, in particular to vacuum pumping equipment acting on a target forming unit in an isostatic pressing machine.
Background
The isostatic press is to put the materials filled in a sealed elastic mould into a container, apply a certain pressure to the materials, and press the materials into solid bodies to obtain a blank body with an original shape. And (3) after the pressure is released, taking the die out of the container, and demolding to obtain the green body treatment equipment.
According to the manufacturing experience of carrying out isostatic press forming on powder, the material density of the target material formed by the isostatic press cannot reach preset parameters due to the fact that the powder contains air components with a certain proportion, a large number of tiny gas cavities are formed in a blank body, and in order to reduce the influence of uncertain parameters, vacuumizing treatment is needed to be carried out on target material forming equipment.
Disclosure of Invention
Aiming at the prior art, the utility model provides the vacuumizing equipment which is used for vacuumizing in the target forming link and acts on the target forming unit in the isostatic pressing machine.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the vacuum pumping unit comprises a pressure-resistant housing and two groups of negative pressure cavities arranged in the pressure-resistant housing, and a metal partition plate is arranged between the two groups of negative pressure cavities.
The negative pressure cavity comprises a rectangular groove and a pressure plate which is arranged in the rectangular groove and can slide up and down, a sealing gasket is arranged at the outer side edge of the pressure plate, the lower bottom surface of the rectangular groove inclines towards one side, a discharging gate is arranged on the side corresponding to the lowest edge of the lower bottom surface of the rectangular groove, the height of the discharging gate is smaller than the inclined height difference of the lower bottom surface of the rectangular groove, and one-way valves are arranged on the lower bottom surface of the rectangular groove and the pressure plate.
The rectangular groove is provided with a hydraulic driving connecting rod connected with the pressure plate, the vacuum pumping unit is provided with a PLC circuit board, and the PLC circuit boards are respectively connected with the hydraulic driving connecting rods arranged on the rectangular groove in the two groups of negative pressure cavities.
The discharging gate is internally provided with a glass window for observing powder accumulation conditions, two groups of reflux ladders are arranged at the lower sides of the negative pressure cavities, and the reflux ladders are baffles which are arranged at the two sides of the inner wall of the pressure-resistant shell and incline downwards.
The pressure-resistant shell is of a bucket bin type structure.
The beneficial effects of the utility model are as follows:
the reciprocating type vacuumizing structure design composed of the negative pressure cavities is adopted, so that the abrasion of the traditional axial flow fan type vacuumizing device to the rotating shaft is optimized, and the service life of the device is prolonged.
And the recycling structure of the discharging gate is additionally arranged, so that the recycling efficiency of materials is improved.
The mode of combining the pressure-resistant shell and the metal partition plate is adopted, so that the manufacturing cost is reduced.
And a one-way valve is arranged to realize the vacuumizing operation of the negative pressure cavity.
And a reflux ladder is arranged, so that powder is prevented from being adsorbed into the negative pressure cavity by vacuumizing operation, the powder in the target forming equipment is less than a preset value, and the finished product performance of the blank is reduced.
Drawings
Fig. 1: the structure of the utility model is schematically shown;
wherein, the pressure-proof shell-1, the metal partition plate-2, the pressure plate-3, the lower bottom surface-4, the discharging gate-5, the hydraulic driving connecting rod-6, the reflux ladder-7 and the one-way valve-8.
Detailed Description
For a better understanding of the objects, technical solutions and advantages of the present utility model, the technical solutions of the present utility model will be clearly and completely described in the following in conjunction with the present embodiment, but the protection of the present utility model is not limited to the following embodiment. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.
Example 1
As shown in fig. 1, the embodiment provides a vacuum pumping device acting on a target forming unit in an isostatic press, which comprises a vacuum pumping unit, wherein the vacuum pumping unit is connected with a cavity of the isostatic press target forming device through a sealing rubber ring, the sealing rubber ring is arranged on a vent hole in the isostatic press target forming device, the vacuum pumping unit comprises a pressure housing 21 and two groups of negative pressure cavities arranged in the pressure housing 21, and a metal partition plate is arranged between the two groups of negative pressure cavities.
The negative pressure cavity comprises a rectangular groove and a pressure plate 3 which is arranged in the rectangular groove and can slide up and down, a sealing gasket is arranged at the outer side edge of the pressure plate 3, the lower bottom surface 4 of the rectangular groove inclines towards one side, a discharging gate 5 is arranged on the side corresponding to the lowest edge of the lower bottom surface 4 of the rectangular groove, the height of the discharging gate 5 is smaller than the inclined height difference of the lower bottom surface 4 of the rectangular groove, and one-way valves 8 are arranged on the lower bottom surface 4 of the rectangular groove and the pressure plate 3.
The rectangular groove is provided with a hydraulic driving connecting rod 6 connected with the pressure plate 3, the vacuum pumping unit is provided with a PLC circuit board, and the PLC circuit board is respectively connected with the hydraulic driving connecting rods 6 arranged on the rectangular groove in the two groups of negative pressure cavities.
The discharging gate 5 is internally provided with a glass window for observing powder accumulation conditions, two groups of negative pressure cavities are provided with reflux ladders 7 at the lower sides, and the reflux ladders 7 are baffle plates which are arranged at the two sides of the inner wall of the pressure-resistant housing 21 and incline downwards.
The pressure housing 21 has a hopper-type structure.
The one-way valve 8 is a pneumatic check valve, and the one-way valve 8 is arranged upwards in a one-way.
The PLC circuit board controls the hydraulic driving connecting rod 6 arranged in the two negative pressure cavities to carry out two-cylinder reciprocating driving operation.
A vacuum gauge is provided under the metal diaphragm in the pressure housing 21.
The outer side of the vacuum pumping unit is provided with a metal supporting leg, and the metal supporting leg is fixedly connected with target forming equipment of the isostatic pressing machine.
Before use, the vacuum pumping unit is fixed on target forming equipment of the isostatic press and is connected in a sealing way by using a sealing rubber ring.
The PLC circuit board controls the hydraulic driving connecting rod 6 arranged in the two vacuum pumping units to drive the pressure plate 3 to perform two-cylinder reciprocating motion, so that the vacuum pumping operation is realized.
The surface of the baffle is a polished surface.
And (3) a pumping and pressing flow: the PLC circuit board controls the hydraulic drive connecting rod 6 to retract, drives the pressure plate 3 to ascend, enlarges the space in the negative pressure cavity, and performs vacuumizing adsorption on air in the target forming equipment through the one-way valve 8 arranged in the lower bottom surface 4 of the rectangular groove, so as to realize vacuumizing operation.
The pressure release flow is as follows: the PLC circuit board controls the hydraulic drive connecting rod 6 to extend to drive the pressure plate 3 to descend, the space in the negative pressure cavity is reduced, and air in the negative pressure cavity is discharged through the one-way valve 8 arranged in the pressure plate 3, so that pressure relief operation is completed.
Because the two groups of negative pressure cavities adopt reciprocating two-cylinder motion, the uninterrupted operation of the vacuum pumping unit is ensured.
And the reflux ladder 7 is arranged, so that the suction and lifting effect on powder is further reduced when the vacuum pumping unit is operated, and meanwhile, the inclined design is adopted, the powder is recovered by falling again, and the weight accuracy of target materials is ensured.
The design of the discharging gate 5 realizes the recovery of the deposited powder in the negative pressure cavity, improves the utilization efficiency and prevents the problem of environmental pollution caused by the direct discharge of the powder.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (5)
1. The vacuum pumping equipment acting on the target forming unit in the isostatic pressing machine is characterized in that: the vacuum pumping unit is connected with cavities of isostatic pressing machine target forming equipment through sealing rubber rings, the sealing rubber rings are arranged on air leakage holes in the isostatic pressing machine target forming equipment, the vacuum pumping unit comprises a pressure-proof shell and two groups of negative pressure cavities arranged in the pressure-proof shell, and a metal partition plate is arranged between the two groups of negative pressure cavities.
2. The vacuum apparatus for acting on a target forming unit in an isostatic press as claimed in claim 1, wherein: the negative pressure cavity comprises a rectangular groove and a pressure plate which is arranged in the rectangular groove and can slide up and down, a sealing gasket is arranged at the outer side edge of the pressure plate, the lower bottom surface of the rectangular groove inclines towards one side, a discharging gate is arranged on the side corresponding to the lowest edge of the lower bottom surface of the rectangular groove, the height of the discharging gate is smaller than the inclined height difference of the lower bottom surface of the rectangular groove, and one-way valves are arranged on the lower bottom surface of the rectangular groove and the pressure plate.
3. The vacuum apparatus for acting on a target forming unit in an isostatic press as claimed in claim 2, wherein: the rectangular groove is provided with a hydraulic driving connecting rod connected with the pressure plate, the vacuum pumping unit is provided with a PLC circuit board, and the PLC circuit boards are respectively connected with the hydraulic driving connecting rods arranged on the rectangular groove in the two groups of negative pressure cavities.
4. The vacuum apparatus for acting on a target forming unit in an isostatic press as claimed in claim 2, wherein: the discharging gate is internally provided with a glass window for observing powder accumulation conditions, two groups of reflux ladders are arranged at the lower sides of the negative pressure cavities, and the reflux ladders are baffles which are arranged at the two sides of the inner wall of the pressure-resistant shell and incline downwards.
5. The vacuum apparatus for acting on a target forming unit in an isostatic press as claimed in claim 1, wherein: the pressure-resistant shell is of a bucket bin type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320657788.8U CN219256541U (en) | 2023-03-29 | 2023-03-29 | Vacuum-pumping equipment acting on target forming unit in isostatic pressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320657788.8U CN219256541U (en) | 2023-03-29 | 2023-03-29 | Vacuum-pumping equipment acting on target forming unit in isostatic pressing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219256541U true CN219256541U (en) | 2023-06-27 |
Family
ID=86860532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320657788.8U Active CN219256541U (en) | 2023-03-29 | 2023-03-29 | Vacuum-pumping equipment acting on target forming unit in isostatic pressing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219256541U (en) |
-
2023
- 2023-03-29 CN CN202320657788.8U patent/CN219256541U/en active Active
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