CN104307949A - Hollow aluminum profile cold bending molding die and molding technology using same - Google Patents
Hollow aluminum profile cold bending molding die and molding technology using same Download PDFInfo
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- CN104307949A CN104307949A CN201410525130.7A CN201410525130A CN104307949A CN 104307949 A CN104307949 A CN 104307949A CN 201410525130 A CN201410525130 A CN 201410525130A CN 104307949 A CN104307949 A CN 104307949A
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- hollow aluminum
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Abstract
The invention discloses a hollow aluminum profile cold bending molding die which comprises a bending die arranged on a base, wherein the bending die comprises a fixed die fixedly arranged on the base and a movable die arranged on the base and capable of rotating around the base, and the hollow aluminum profile cold bending molding die further comprises an extracting core which is movably arranged inside a hollow aluminum profile in an inserting mode and used for filling the inner hollow cavity. The invention further discloses a molding technology using the hollow aluminum profile cold bending molding die. Due to the use of the extracting core used for filling the interior of the hollow aluminum profile in the cold bending molding process, the extracting core is bendable and cannot easily deform, the deformation due to the pulling or squeezing of the hollow aluminum profile in the bending process can be prevented, the attractiveness is kept, and the structural strength of the hollow aluminum profile after being bent can be improved.
Description
Technical field
The invention belongs to field of machining, relate to a kind of hollow aluminum section cold roll forming mould, and a kind of moulding process using this mould.
Background technology
Hollow aluminum section has light firm and corrosion-resistant and antirust advantage, is often applied on living utensil and production equipment, and in household heater and kitchen range top combined utensil industry, hollow aluminum section widely uses as bracing frame.For ease of metallurgy and foundry, the hollow aluminum section after deep processing, surface coloring is generally vertical bar shaped, usually needs to carry out cold roll forming again for use.Current cold-bending molding technology normally utilizes bending machine to carry out, hollow aluminum section is fixed on mould, utilize the dynamic model in hydraulic pressure equal power device rotary die, make that dynamic model is relative with cover half to be rotated, and then drive the hollow aluminum section brake forming be located thereon, due to the softer easy distortion of aluminium material, in forming process, the curved outside of hollow aluminum section stretches and extends, easily cave inward distortion, curved interior is squeezed, and easily occurs fold, affect attractive in appearance, and due in BENDING PROCESS the pressure of mould to aluminium section bar larger, the outer wall of mould and hollow aluminum section has relative sliding again, therefore the easy surface scratching aluminium section bar, affect attractive in appearance.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of moulding process that hollow aluminum section can be avoided to be out of shape hollow aluminum section cold roll forming mould that is wrinkling and that be scratched and to use this mould.
The present invention is the technical scheme that its technical problem of solution adopts:
A kind of hollow aluminum section cold roll forming mould, the rotation clamping die for clamping hollow aluminum section include pedestal, fixing cover half on the base and can rotate around this pedestal, pedestal is provided with a flexure plane suitable with hollow aluminum section curved interior face, also includes movable being plugged in hollow aluminum section for filling loosing core of its internal cavities.
Optionally, describedly to loose core for flexible flexibility is loosed core.
Described looses core for rigidity is loosed core, comprise two directly loose core and a chain movable joint loose core, described chain movable joint is loosed core and is articulated in its end of always loosing core, and the length that chain movable joint is loosed core is more than or equal to the length of hollow aluminum section bending section.。
Described cover half includes the anti-wrinkling mould and clamping die that mutually be located in and surround an accommodating cavity together, and hollow aluminum section is mobilizable to be placed in this accommodating cavity, and described anti-wrinkling mould is arranged on pedestal and also can fits with the outer wall of hollow aluminum section curved interior.
The invention also discloses a kind of moulding process using described a kind of hollow aluminum section cold roll forming mould, comprise the following steps:
The first step, will loose core and plug in hollow aluminum section;
Second step, is placed in cover half and rotates in clamping die, and clamping the tight hollow aluminum section of die clamp with rotation by hollow aluminum section;
3rd step, drive and rotate clamping die and rotate around pedestal, hollow aluminum section is thereupon rotating and the flexure plane extruded on pedestal and brake forming;
4th step, unclamps rotation clamping die, taken out by hollow aluminum section, and taking-up is loosed core from cover half and rotation clamping die.
As improvement, polishing has all been carried out in the face that described cover half is fitted with aluminium section bar.
As improvement, in the described first step, between lock pin and hollow aluminium, scribble lubricating oil.
As improvement, in described second step, the contact surface of bending die and hollow aluminium scribbles lubricating oil.
The invention has the beneficial effects as follows: owing to adding for filling loosing core of hollow aluminum section inside in Cold Roll Forming Process in the present invention, flexible and not yielding owing to loosing core, hollow aluminum section stressed stretching or distortion of being squeezed and producing in BENDING PROCESS can be prevented, keep attractive in appearance, and the structural strength of the hollow aluminum section after bending can be improved; Add the structure of anti-wrinkling mould, be convenient to hollow aluminum section and bend material flowing when extruding, and the sidewall uniform force of BENDING PROCESS hollow core aluminium section bar can be ensured, even elimination BENDING PROCESS hollow core aluminium section bar can be reduced and be out of shape wrinkling situation.Owing to having carried out polishing to cover half and scribble lubricating oil on each contact surface in moulding process of the present invention, the friction of each contact surface can be reduced, prevent the surface scratching hollow aluminum section, make it more attractive in appearance, and the surface-treated layer of hollow aluminum section can not be destroyed.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the explosive view figure of mould in the present invention;
Fig. 2 is the overall structure figure of mould in the present invention;
Fig. 3 is the structure chart in the present invention after mould brake forming;
Fig. 4 is the flow chart of moulding process in the present invention.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, the rotation clamping die 21 for clamping hollow aluminum section 4 including pedestal 1, be fixed on the cover half 22 on this pedestal 1 and can rotate around this pedestal 1, pedestal 1 is provided with a flexure plane 11 suitable with hollow aluminum section 4 curved interior face, and cover half 22 comprises the anti-wrinkling mould 221 be fixed on pedestal 1 and the clamping die 222 that can be located on anti-wrinkling mould 221.The rotation rotating clamping die 21 is driven by power set, during use, hollow aluminum section 4 is arranged on cover half 22 and rotates in clamping die 21, locking rotates clamping die 21 makes itself and hollow aluminum section 4 cannot relative sliding, power set driven rotary clamping die 21 rotates around pedestal 1, thus makes hollow aluminum section 4 brake forming.Relative to traditional mould, owing to having the structure of anti-wrinkling mould 221 in this mould, effectively can reduce that even to avoid the curved interior of hollow aluminum section 4 to be squeezed wrinkling, and effectively can reduce the distortion of BENDING PROCESS hollow core aluminium section bar 4 sidewall.
Loose core and 3 to plug to hollow aluminum section 4 for preventing the indent produced in BENDING PROCESS, in the present embodiment, 3 employing rigidity of loosing core are loosed core, comprise two ends and directly loose core 31 and be articulated in its chain movable joint of always loosing core on 31 and loose core 32, this chain movable joint is loosed core and 32 to be made up of the chain movable joint of some sections of mutual pivot joints Unit 32 of loosing core, during use, this section of chain movable joint is loosed core and 32 is placed in the knee of hollow aluminum section 4 and directly looses core between 31 two, bend with hollow aluminum section 4, prevent hollow aluminum section 4 knee from indent occurring, the structure of chain-type is convenient to bending rear taking-up.Loose core and 3 also can adopt flexible material or structure, such as spring structure, plastic material etc.For ease of 3 operating loosing core, loose core 3 one end be also provided with one handle 311.
With reference to Fig. 4, a kind of moulding process using this hollow aluminum section cold roll forming mould, comprise the following steps: the first step, to loose core and 3 plug in hollow aluminum section 4,3 employing rigidity of loosing core in the present embodiment are loosed core, and make chain movable joint loose core the tune to be curved of 32 filling hollow aluminum section 4, and utilizing looses core 3 prevents hollow aluminum section 4 Inward deflection, loose core between 3 and hollow aluminum section 4 and scribble lubricating oil, prevent from scratching; Second step, hollow aluminum section 4 be placed in cover half 22 and rotate in clamping die 21, and clamping hollow aluminum section 4 with rotation clamping die 21, cover half 22 all have passed through polishing with the binding face of hollow aluminum section 4, and scribble lubricating oil, prevent the surface of scuffing hollow aluminum section 4 and affect attractive in appearance; 3rd step, rotation clamping die 21 is driven to rotate around pedestal 1, hollow aluminum section 4 is thereupon rotating and the flexure plane 11 extruded on pedestal 1 and brake forming, anti-wrinkling mould 221 in cover half 22 fits tightly with the curved interior of hollow aluminum section 4, the curved interior of hollow aluminum section 4 can be prevented to be squeezed wrinkling; 4th step, unclamps and rotates clamping die 21, taken out by hollow aluminum section 4, and taking-up looses core 3 from cover half 22 and rotation clamping die 21.Loosing core in the present embodiment 3 looses core 3 for rigidity, can ensure that the straightway of BENDING PROCESS hollow core aluminium section bar 4 does not produce distortion simultaneously, be articulated in the chain movable joint of directly loosing core on 31 to loose core and 32 can rotate with bending section and prevent the distortion of bending section, 31 hollow aluminum section 4 can be detached with directly loosing core after shaping completing, easy to use, certainly loosing core 3 also can be that flexibility is loosed core.
The hollow aluminum section 4 used in this moulding process should have good ductility, and preferred hardness is HV3, and wall thickness is more than or equal to 0.8mm, can obtain good anti-corrugation effect.
In the present embodiment, adjustment rotates the anglec of rotation of clamping die 21 and just hollow aluminum section 4 can be bent l-shaped, the shape such as U-shaped, carry out repeatedly brake forming or replaceable mould shape then can bend to the comparatively complicated shape such as S type, W type, these bending methods are widely used in the industry, for those skilled in the art know, be not separately described further at this.
The foregoing is only preferred embodiments of the present invention, as long as the technical scheme realizing the object of the invention with basic same approach all belongs within protection scope of the present invention.
Claims (8)
1. a hollow aluminum section cold roll forming mould, the rotation clamping die for clamping hollow aluminum section include pedestal, fixing cover half on the base and can rotate around this pedestal, pedestal is provided with a flexure plane suitable with hollow aluminum section curved interior face, it is characterized in that: also include movable being plugged in hollow aluminum section for filling loosing core of its internal cavities.
2. a kind of hollow aluminum section cold roll forming mould according to claim 1, is characterized in that: described looses core for flexible flexibility is loosed core.
3. a kind of hollow aluminum section cold roll forming mould according to claim 1, it is characterized in that: described looses core for rigidity is loosed core, comprise two directly loose core and a chain movable joint loose core, described chain movable joint is loosed core and is articulated in its end of always loosing core, and the length that chain movable joint is loosed core is more than or equal to the length of hollow aluminum section bending section.
4. a kind of hollow aluminum section cold roll forming mould according to claim 1, it is characterized in that: described cover half includes the anti-wrinkling mould and clamping die that mutually be located in and surround an accommodating cavity together, hollow aluminum section is mobilizable to be placed in this accommodating cavity, and described anti-wrinkling mould is arranged on pedestal and also can fits with the outer wall of hollow aluminum section curved interior.
5. use a moulding process for the arbitrary described a kind of hollow aluminum section cold roll forming mould of claim 1 to 4, it is characterized in that comprising the following steps:
The first step, will loose core and plug in hollow aluminum section;
Second step, is placed in cover half and rotates in clamping die, and clamping the tight hollow aluminum section of die clamp with rotation by hollow aluminum section;
3rd step, drive and rotate clamping die and rotate around pedestal, hollow aluminum section is thereupon rotating and the flexure plane extruded on pedestal and brake forming;
4th step, unclamps rotation clamping die, taken out by hollow aluminum section, and taking-up is loosed core from cover half and rotation clamping die.
6. a kind of moulding process according to claim 5, is characterized in that: polishing has all been carried out in the face that described cover half is fitted with aluminium section bar.
7. a kind of moulding process according to claim 5, is characterized in that: in the described first step, scribbles lubricating oil between lock pin and hollow aluminium.
8. a kind of moulding process according to claim 5, is characterized in that: in described second step, scribbles lubricating oil on cover half with on the contact surface of hollow aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525130.7A CN104307949A (en) | 2014-10-08 | 2014-10-08 | Hollow aluminum profile cold bending molding die and molding technology using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525130.7A CN104307949A (en) | 2014-10-08 | 2014-10-08 | Hollow aluminum profile cold bending molding die and molding technology using same |
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| Publication Number | Publication Date |
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| CN104307949A true CN104307949A (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410525130.7A Pending CN104307949A (en) | 2014-10-08 | 2014-10-08 | Hollow aluminum profile cold bending molding die and molding technology using same |
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| CN (1) | CN104307949A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941288A (en) * | 2017-05-18 | 2018-12-07 | 张家港市伯勤机械厂 | A kind of automatic loading/unloading bending machine |
| CN109433845A (en) * | 2018-12-21 | 2019-03-08 | 山东新活新材料科技有限公司 | A kind of empty stomach aluminum profile stretching alignment clamping fill-in pad |
| CN110802378A (en) * | 2019-11-29 | 2020-02-18 | 安庆汇通汽车部件股份有限公司 | Production process of hollow stabilizer bar |
| CN111318598A (en) * | 2020-03-20 | 2020-06-23 | 哈尔滨工业大学 | Bending die for rectangular pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141658A (en) * | 1994-11-16 | 1996-06-04 | Sanetsu:Kk | Method for bending polyvinyl chloride-coated steel tube |
| JP2001105034A (en) * | 1999-10-12 | 2001-04-17 | Mitsubishi Heavy Ind Ltd | Pipe bender |
| JP4376961B1 (en) * | 2009-01-23 | 2009-12-02 | 株式会社 ユーアイテクニカ | Pipe vendor wipers |
| CN202070623U (en) * | 2011-05-13 | 2011-12-14 | 常州腾龙汽车零部件股份有限公司 | Mould preventing elbow pipe from sinking and wrinkling |
| CN203599317U (en) * | 2013-12-04 | 2014-05-21 | 艾默生网络能源（江门）有限公司 | Pipe bending machine |
-
2014
- 2014-10-08 CN CN201410525130.7A patent/CN104307949A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141658A (en) * | 1994-11-16 | 1996-06-04 | Sanetsu:Kk | Method for bending polyvinyl chloride-coated steel tube |
| JP2001105034A (en) * | 1999-10-12 | 2001-04-17 | Mitsubishi Heavy Ind Ltd | Pipe bender |
| JP4376961B1 (en) * | 2009-01-23 | 2009-12-02 | 株式会社 ユーアイテクニカ | Pipe vendor wipers |
| CN202070623U (en) * | 2011-05-13 | 2011-12-14 | 常州腾龙汽车零部件股份有限公司 | Mould preventing elbow pipe from sinking and wrinkling |
| CN203599317U (en) * | 2013-12-04 | 2014-05-21 | 艾默生网络能源（江门）有限公司 | Pipe bending machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941288A (en) * | 2017-05-18 | 2018-12-07 | 张家港市伯勤机械厂 | A kind of automatic loading/unloading bending machine |
| CN109433845A (en) * | 2018-12-21 | 2019-03-08 | 山东新活新材料科技有限公司 | A kind of empty stomach aluminum profile stretching alignment clamping fill-in pad |
| CN110802378A (en) * | 2019-11-29 | 2020-02-18 | 安庆汇通汽车部件股份有限公司 | Production process of hollow stabilizer bar |
| CN111318598A (en) * | 2020-03-20 | 2020-06-23 | 哈尔滨工业大学 | Bending die for rectangular pipe |
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Application publication date: 20150128 |
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