CN211588176U - Pressure forming device for special-shaped metal can or tube - Google Patents
Pressure forming device for special-shaped metal can or tube Download PDFInfo
- Publication number
- CN211588176U CN211588176U CN201922004899.5U CN201922004899U CN211588176U CN 211588176 U CN211588176 U CN 211588176U CN 201922004899 U CN201922004899 U CN 201922004899U CN 211588176 U CN211588176 U CN 211588176U
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- die
- pressure
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- cover plate
- die body
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- 239000002184 metal Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 6
- 239000008267 milk Substances 0.000 description 5
- 210000004080 milk Anatomy 0.000 description 5
- 235000013336 milk Nutrition 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation 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
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a pressure forming device of heterotypic metallic tank or pipe. The device comprises a forming die and a pressurizing bag; the forming die comprises a die body, a die upper cover plate and a die lower cover plate; the lower cover plate and the upper cover plate are respectively arranged below and above the die body; the die body is formed by assembling two half dies in a mutual assembly mode, and the inner molded surface of the die body is matched with the outer molded surface of the metal can or the pipe; the pressure bag is arranged in the die body and used for filling pressure medium in the process of forming the metal can or the pipe, ensuring that the pressure medium is completely isolated from the workpiece, preventing the workpiece from being polluted and damaged by the pressure medium, and gradually extruding the metal can or the pipe blank under the action of pressure until the outer profile of the blank is completely attached to the inner profile of the die, so as to ensure that the special-shaped metal can or the pipe is fully formed. Adopt the utility model discloses a device, the atress is even, has improved the fashioned qualification rate of work piece, has improved size and surface accuracy after the work piece shaping, has improved the reuse nature of device.
Description
Technical Field
The utility model relates to a metal work piece processing technology field, a pressure forming device of heterotypic metallic tank or pipe specifically says so.
Background
The irregular metal can or tube is a special-shaped can or tube designed according to actual needs (such as flow requirement of the tube, capacity, appearance and ergonomics requirement of the can and the like) on the basis of the traditional regular can or tube (usually cylindrical and square), such as a reducer tube, a food packaging can and the like.
In the prior art, the molding of the special-shaped metal can or tube is usually realized by adopting a split expansion mold, namely, the expansion mold is arranged in the metal can or tube blank and is propped open to be directly contacted with the metal can or tube blank, so that the blank is propped open, and the effect of molding the special-shaped can or tube is achieved.
However, the molding method has the following disadvantages:
firstly, the metal expansion die is in direct contact with a metal workpiece, so that unbalanced stress on the workpiece is easily caused, the formed workpiece is easily scratched, and the requirements on the size and the profile accuracy of the formed workpiece are difficult to ensure;
secondly, as the expanding die adopts a split structure, the formed workpiece has obvious indentation at the edge of each split;
thirdly, because the metal expansion die is directly contacted with the metal workpiece, the expansion die is easily damaged in the forming process, so that the reutilization property of the expansion die is poor;
and fourthly, an expansion die with a specific structure and a specific size is required to be designed for the metal can or the metal pipe with the specific size, so that the forming device has no universality and high forming cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the defect that exists among the prior art, the utility model provides a forming device of heterotypic metallic tank or pipe, utilize to fill the bag from the inside direct even effort of applying to the work piece, owing to fill the bag and be elastic material, so the shaping atress is flexible even atress, the fashioned qualification rate of work piece has been improved greatly, the size and the surface accuracy after heterotypic metallic tank or the pipe shaping have been improved simultaneously, forming device's reuse nature has been improved, forming device's complexity has been reduced, manufacturing cost is reduced, the basis is put down for the fashioned automated control of heterotypic metallic tank or pipe.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a pressure forming device of a special-shaped metal can or tube comprises a forming die and a pressurizing bag 4, wherein the forming die comprises a die body 2, a die upper cover plate 5 and a die lower cover plate 1;
the lower die cover plate 1 is arranged below the die body 2, and the upper die cover plate 5 is arranged above the die body 2; the die body 2 is formed by assembling two half dies in a half-to-half mode and is used for placing a blank of a metal can or a pipe to be formed;
the inner profile of the die body 2 is designed according to the appearance requirement of the metal can or the pipe 3, and the inner profile is matched with the outer profile of the metal can or the pipe;
the die is characterized in that a pressurizing bag 4 is arranged in the die body 2, a pressure source is connected above the pressurizing bag 4 and used for filling pressure medium in the forming process of the metal can or the tube 3 and gradually extruding the blank of the metal can or the tube 3 under the action of pressure until the outer profile of the blank is completely attached to the inner profile of the die body 2 so as to ensure that the special-shaped metal can or the tube 3 is fully formed.
Further, the material of the pressure-filling bag 4 is an elastic material (such as rubber).
Further, a threaded port is connected above the pressurizing bag 4, and the upper end of the threaded port penetrates through a hole in the center of the upper cover plate 5 of the mold and is communicated with a pressure source; the middle part of the threaded opening is fixed on the upper cover plate 5 of the die; the pressure source is used to provide pressure medium to the pressurizing bladder 4.
Furthermore, the pressure bag 4, the threaded port and the pressure source are in full-closed connection. Can ensure that the pressurizing medium is completely isolated from the blank and the outside, and has no pollution.
Further, the pressure medium is a liquid or a gas.
Further, the two half dies of the die body 2 are fastened through bolts; and the lower die cover plate 1 and the die body 2 and the upper die cover plate 5 and the die body 2 are respectively fastened and installed through bolts.
Further, the blank of the metal can or tube 3 to be formed is placed coaxially with the die body 2; the pressurizing bag 4 is arranged coaxially with the die body 2.
Further, the magnitude of the charging pressure in the charging bag 4 is determined by calculation and experimental verification according to the material and the wall thickness of the metal can or tube 3, so as to ensure that the special-shaped metal can or tube 3 is fully molded.
The pressure forming device of the metal can or the metal pipe adopts the pressurizing bag to directly apply uniform acting force to the metal workpiece from the inside for forming compared with an expansion die forming device, and the forming stress is flexible and uniform stress because the pressurizing bag is made of elastic material, thereby greatly improving the qualified rate of metal workpiece forming, simultaneously improving the size and the surface precision of the formed special-shaped metal can or the formed metal pipe, and improving the reutilization property of the forming device; the pressure medium is filled into the pressure bag, so that the complete isolation of the pressure medium and the metal workpiece can be ensured, and the pollution and the damage of the pressure medium to the metal workpiece can be prevented; the control system of the pressure medium is totally enclosed, and no pollution is caused to the working site; additionally, the pressure forming device of metallic tank or pipe provide absolute support to the fashioned full automatization equipment of pressure of metallic tank or pipe on next step.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a schematic view of the embodiment (milk powder can) before and after molding;
in fig. 2: a, a milk powder tank before forming;
b, forming the special-shaped milk powder can.
Wherein: 1-a lower cover plate of the mould; 2, a die body (two pieces are assembled in pair); 3-metal cans or tubes; 4, inflating the bladder; and 5, an upper cover plate of the mold.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a pressure forming device for a special-shaped metal can or tube comprises a forming die and a pressurizing bag 4, wherein the forming die comprises a die body 2, a die upper cover plate 5 and a die lower cover plate 1;
the lower die cover plate 1 is arranged below the die body 2, and the upper die cover plate 5 is arranged above the die body 2; the die body 2 is formed by assembling two half dies in a half-to-half mode and is used for placing a blank of a metal can or a pipe 3 to be formed;
the inner profile of the die body 2 is designed according to the appearance requirement of the metal can or the pipe 3, and the inner profile is matched with the outer profile of the metal can or the pipe;
the die is characterized in that a pressurizing bag 4 is arranged in the die body 2, a pressure source is connected above the pressurizing bag 4 and used for filling pressure medium in the forming process of the metal can or the tube 3 and gradually extruding the blank of the metal can or the tube 3 under the action of pressure until the outer profile of the blank is completely attached to the inner profile of the die body 2 so as to ensure that the special-shaped metal can or the tube 3 is fully formed.
Further, the material of the pressure-filling bag 4 is an elastic material (such as rubber).
Further, a threaded port is connected above the pressurizing bag 4, and the upper end of the threaded port penetrates through a hole in the center of the upper cover plate 5 of the mold and is communicated with a pressure source; the middle part of the threaded opening is fixed on the upper cover plate 5 of the die; the pressure source is used to provide pressure medium to the pressurizing bladder 4.
Furthermore, the pressure bag 4, the threaded port and the pressure source are in full-closed connection. Can ensure that the pressurizing medium is completely isolated from the blank and the outside, and has no pollution.
Further, the pressure medium is a liquid or a gas.
Further, the two half dies of the die body 2 are fastened through bolts; and the lower die cover plate 1 and the die body 2 and the upper die cover plate 5 and the die body 2 are respectively fastened and installed through bolts.
Further, the blank of the metal can or tube 3 to be formed is placed coaxially with the die body 2; the pressurizing bag 4 is arranged coaxially with the die body 2.
The device work flow when using as follows:
step one, manufacturing a forming die with an inner molded surface matched with the outer molded surface of the metal can or the pipe according to the appearance requirement of the metal can or the pipe;
secondly, placing a blank for forming the metal can or the pipe into the die body 2;
step three, placing the pressurizing bag 4 into the cavity of the blank, fixing the pressurizing bag 4 and the upper cover plate 5 of the mold, and sealing the molding mold;
step four, gradually filling pressure media into the pressurizing bag 4, enabling the pressurizing bag 4 to gradually extrude the metal can or pipe 3 blank under the action of pressure until the outer profile of the blank is completely attached to the inner profile of the die body 2, and determining the pressure of the pressurizing bag 4 by calculating and experimental verification according to the material and the wall thickness of the metal can or pipe 3 so as to ensure that the special-shaped metal can or pipe 3 is fully formed;
and step five, releasing the pressure in the pressurizing bag 5, opening the forming die, and taking out the formed metal can or tube 3.
Examples
As shown in fig. 1 and 2, two half molds are oppositely arranged to form a mold body 2 and are fastened by bolts; the lower cover plate 1 of the mould and the lower mounting surface of the mould body 2 are fastened and mounted by bolts; before molding, the milk powder can (as shown in figure 2a) is placed in the mold body 2; the threaded port of the pressurizing bag 4 is fixed on the upper cover plate 5 of the mould; the upper cover plate 5 of the mould and the upper mounting surface of the mould body 2 are fastened and mounted by bolts; the whole device is fixed, the threaded port of the pressurizing bag 4 extends out of the device to be communicated with a pressure source, the pressure source pressurizes the pressurizing bag to a pressure value (3MPa) verified through calculation, the pressure source stops working, pressure is relieved, the device is disassembled, and the molded special-shaped milk powder tank is taken out (as shown in figure 2 b).
The foregoing is directed to preferred embodiments of the present invention, and not to any other specific forms of the present invention, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are intended to be included within the scope of the present invention.
Those not described in detail in this specification are within the skill of the art.
Claims (8)
1. The pressure forming device of the special-shaped metal can or tube is characterized by comprising a forming die and a pressure bag (4), wherein the forming die comprises a die body (2), a die upper cover plate (5) and a die lower cover plate (1);
the lower die cover plate (1) is arranged below the die body (2), and the upper die cover plate (5) is arranged above the die body (2); the die body (2) is formed by assembling two half dies in a half-to-half mode and is used for placing a blank of a metal can or a pipe (3) to be formed;
the inner profile of the die body (2) is designed according to the exterior requirement of the metal can or the metal pipe (3);
the die is characterized in that a pressurizing bag (4) is arranged in the die body (2), a pressure source is connected above the pressurizing bag (4) and used for pressurizing pressure medium in the forming process of the metal can or the pipe (3) and gradually extruding the blank of the metal can or the pipe (3) under the action of pressure until the outer profile of the blank is completely attached to the inner profile of the die body (2), so that the special-shaped metal can or the pipe (3) is fully formed.
2. Pressure forming device of profiled metal cans or tubes according to claim 1, characterized in that the material of the pressure bladder (4) is an elastic material.
3. The pressure forming device for the profiled metal can or tube as recited in claim 2, wherein a screw port is connected to the upper side of the pressure-filling bag (4), and the upper end of the screw port passes through a hole in the center of the upper cover plate (5) of the mold and is communicated with the pressure source; the middle part of the threaded opening is fixed on an upper cover plate (5) of the die; the pressure source is used for providing pressure medium for the pressure-filling bag (4).
4. A device for pressure forming of profiled metallic cans or tubes according to claim 3, wherein the pressure bladder (4), the screw port and the pressure source are connected in a fully closed manner.
5. A pressure forming apparatus for a profiled metal can or tube as claimed in claim 3 wherein the pressure medium is a liquid or a gas.
6. The apparatus for pressure forming of profiled metallic cans or tubes according to claim 1, wherein the two half-moulds of the mould body (2) are fastened by bolts; the lower die cover plate (1) and the die body (2) and the upper die cover plate (5) and the die body (2) are fastened and installed through bolts respectively.
7. Pressure forming device of profiled metal cans or tubes according to claim 1, characterized in that the blank of the metal can or tube (3) to be formed is placed coaxially to the die body (2); the pressurizing bag (4) is coaxial with the die body (2).
8. The pressure forming device for the special-shaped metal can or tube as claimed in claim 3, characterized in that the filling pressure in the filling bladder (4) is determined by calculation and experimental verification according to the material and wall thickness of the metal can or tube (3) to ensure the sufficient forming of the special-shaped metal can or tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922004899.5U CN211588176U (en) | 2019-11-20 | 2019-11-20 | Pressure forming device for special-shaped metal can or tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922004899.5U CN211588176U (en) | 2019-11-20 | 2019-11-20 | Pressure forming device for special-shaped metal can or tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211588176U true CN211588176U (en) | 2020-09-29 |
Family
ID=72588352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922004899.5U Expired - Fee Related CN211588176U (en) | 2019-11-20 | 2019-11-20 | Pressure forming device for special-shaped metal can or tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211588176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935125A (en) * | 2021-02-09 | 2021-06-11 | 奥瑞金科技股份有限公司 | Method for producing metal can and metal can |
| CN113477778A (en) * | 2021-05-21 | 2021-10-08 | 云南昆钢耐磨材料科技股份有限公司 | Forging is forming device for welt convenient to one shot forming |
-
2019
- 2019-11-20 CN CN201922004899.5U patent/CN211588176U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935125A (en) * | 2021-02-09 | 2021-06-11 | 奥瑞金科技股份有限公司 | Method for producing metal can and metal can |
| CN113477778A (en) * | 2021-05-21 | 2021-10-08 | 云南昆钢耐磨材料科技股份有限公司 | Forging is forming device for welt convenient to one shot forming |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20200929 |