CN102962317A - Wave plate falling device of welded metal corrugated pipe - Google Patents
Wave plate falling device of welded metal corrugated pipe Download PDFInfo
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- CN102962317A CN102962317A CN2012105124410A CN201210512441A CN102962317A CN 102962317 A CN102962317 A CN 102962317A CN 2012105124410 A CN2012105124410 A CN 2012105124410A CN 201210512441 A CN201210512441 A CN 201210512441A CN 102962317 A CN102962317 A CN 102962317A
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Abstract
The invention discloses a wave plate falling device of a welded metal corrugated pipe, which is mainly characterized in that a lower die assembly comprises a lower die base, a cutting die, an external pressure plate and an internal pressure plate. The upper end of the cutting die protrudes out of the top face of the lower die based and the top face of the cutting die is in a wave plate curve face. The external pressure plate is attached to the outer wall of the cutting die. The top face of the external pressure plate is aligned with the side face outside the cutting die and forms a first chamfered angle with the top end of the external pressure plate at the attached place of the cutting die. The internal pressure plate is placed in the cutting die, and the bottom face thereof leans against the lower die base through an elastic mandrill. The internal pressure plate is attached to the inner wall of the cutting die, and the to top face of the internal pressure plate is aligned with the highest point on the top face of the cutting die and forms a second chamfered angle with the top end of the internal pressure plate at the attached place of the cutting die. An upper die assembly comprises a rubber template fixed on the bottom face of the upper die base. The bottom face of the rubber template is planar. The rubber template flexibly squeezes, molds and cuts the wave plate, and the squeezing stress of the wave plate is small, so that the wave plate does not deform in case of stress recovery, and the molded wave plate is accurate in parameters and burr-free.
Description
Technical field
The present invention relates to a kind of wave plate doffer of welded metal bellow.
Background technology
The welded metal-bellows mechanical seal device is widely used in the industries such as oil, chemical industry, chemical fibre, paper pulp, pharmacy, thermoelectricity, and every have the equipment of pumping or stirring all can use.Its core of welded metal-bellows mechanical seal device provides stretch compensation for bellows, and it is particularly crucial to make so the bellows wave plate.
The circumferential wave plate shape that present most of welded metal bellow sealing supplier or manufacturer can provide, the internal-and external diameter edge mostly is radially straight flange, claims again the straight knife wave plate, but the bellows that the straight knife wave plate is welded is stressed and fatigue resistance is not good.If wave plate internal diameter edge designs becomes 40 ° ~ 47 ° inclination angles, although it is stressed that this wave plate is conducive to bellows, but the wave plate moulding is difficulty very, especially the wave plate inner radius exists burr, adhesion, cuts the phenomenons such as continuous when blanking, waveform is unstable when the wave plate of forming belt leaning angle, reach 0.1-0.3mm with a collection of wave plate internal-and external diameter numerical error, impact welding and sealing effectiveness.As adopting up and down negative and positive die punching material, though be easy to guarantee the waveform size of wave plate, this mode requires very strict to press motion rigidity precision, mould concentricity, flatness, mold materials wearability, impact resistance etc., and noise pollution is arranged.Therefore domestic sealing producer seldom promotes the bellows that inner radius has the inclination angle, and the blanking forming of studying carefully its cause and be exactly original wave plate is difficult.
Summary of the invention
The wave plate doffer that the purpose of this invention is to provide a kind of welded metal bellow.
Wave plate doffer according to a kind of welded metal bellow provided by the invention, comprise lower membrane module and upper die component, wherein, lower membrane module comprises that end face has the die shoe in heavy hole, be loaded on the cutting die of the ring-type in the heavy hole, outer holding pad and circular interior holding pad with open circles, the upper end of cutting die protrudes from the die shoe end face, and the end face of cutting die is wave plate shape curved surface, outer holding pad is fixed on the die shoe, the open circles inwall of outer holding pad fits in the outer wall of cutting die, and the end face of outer holding pad is concordant with the outer top surface of cutting die, has the first chamfering with the outer holding pad top of cutting die joint place, interior holding pad places in the cutting die, and the flexible push rod of its underrun is connected to die shoe, and the outer wall of interior holding pad fits in the inwall of cutting die, and the end face peak of the end face of interior holding pad and cutting die is concordant, has the second chamfering with the interior holding pad top of cutting die joint place; Upper die component comprises upper bolster, and the bottom surface of this upper bolster is fixed with the rubber-type template, and the bottom surface of this rubber-type template is the plane.
A kind of optimal way, the inside top surface of described cutting die has downward inclination angle, and the angle of inclination angle and level is 40 ° ~ 47 °.
Its beneficial effect is: upper die component is descending at a slow speed, the rubber-type template contacts with the wave plate strip first, the wave plate strip is adjacent to the cutting die curved surface by rubber extruded, begin to take shape waveform, because of the wave plate strip by the soft wave plate that is squeezed into of rubber-type template, the extrusion stress after the wave plate moulding is little, can stress do not recover and be out of shape, be that wave plate produces the limit of wriggling, so the wave plate parameter is accurate, accuracy of waveform is high; Under continuous, rubber flows into the first chamfering of external pressure flitch internal diameter and space and the second chamfering of interior holding pad external diameter and the space that cutting die forms of cutting die formation, the pressure of the rubber in above-mentioned the first chamfering and the second chamfering and the edge of a knife acting in conjunction of cutting die internal-and external diameter, produce under the pressure that continues, make the wave plate strip surpass its ultimate tensile strength, the wave plate internal-and external diameter is cut off simultaneously, in like manner, pressure when cutting off the wave plate internal-and external diameter is balanced soft extruding, the extrusion stress that wave plate produces when cutting off wave plate is little, and the wave plate edge is without burr; In addition, because employing is soft to hard blanking pattern, little, the long service life of mould loss; Upper and lower mould is not high to the mould required precision, and the mould check and correction is fast and simple.This off-chip mode has also solved the problem with the wave plate moulding of leaning angle simultaneously.
A kind of optimal way, the material of described rubber-type template are the polyurethane rubber of Shao Shi 95 ± 2A, and the cutting die material is Cr12MoV.Its beneficial effect is: polyurethane rubber stroke submissile recovers, through practice test, and reusable nearly 20,000 times of a slice rubber mat plate.
A kind of optimal way, the bottom of described cutting die also is provided with base plate, fasten along mutual on the heavy hole of base plate outer and die shoe, and the bottom, heavy hole of die shoe is a separable cushion block, the base plate of cutting die places on this cushion block, be evenly equipped with some through holes on the base plate of cutting die, described push rod is positioned at through hole and its two ends are connected to respectively cushion block and holding pad, and push rod is higher than the base plate of cutting die.Doffer is simple in structure, dismounting and easy to maintenance.
A kind of optimal way, described rubber-type template are annular, and described upper die component also comprises the rubber inner panel of the circle that is fixed in the upper bolster bottom surface and with the rubber outside plate of open circles, the rubber-type template clamp places between rubber inner panel and the rubber outside plate; The heavy stand that the end face outside of described outer holding pad has ring-type, and interior holding pad end face has circular heavy stand; The internal diameter of rubber-type template equals or is slightly less than the heavy stand diameter of interior holding pad, and the external diameter of rubber-type template equals or be slightly larger than the heavy stand internal diameter of outer holding pad.The rubber-type template is wear-out part, in that to guarantee in the situation of effective pressure that area with the rubber pattern template is designed into enough little, has reduced maintenance cost; Simultaneously, rubber inner panel, rubber outside plate and rubber-type template split design, the pressure that can reduce the rubber-type template spreads to both sides, makes the pressure that cuts off wave plate more concentrated.
A kind of optimal way, the first chamfering of described outer holding pad is oblique chamfering, the length of going of its end face is 1.7mm, the angle of chamfering line and end face is 30 °, and the second chamfering of interior holding pad is oblique chamfering, and the length of going of its end face is 2mm, and the angle of chamfering line and end face is 30 °.Above-mentioned numerical value is decision design.
Description of drawings
The present invention is described further below in conjunction with the drawings and specific embodiments.
Fig. 1 is the cross-sectional view of the wave plate doffer of a kind of welded metal bellow of providing of the embodiment of the invention.
Fig. 2 is the product decomposing schematic representation of the wave plate doffer of a kind of welded metal bellow of providing of the embodiment of the invention.
Fig. 3 is the partial schematic diagram of cross-section structure behind the matched moulds in the embodiment of the invention.
Fig. 4 is the partial schematic diagram of cutting die cross-section structure in the embodiment of the invention.
Fig. 5 is the schematic perspective view of cutting die in the embodiment of the invention.
The specific embodiment
With reference to figure 1 and Fig. 2, a kind of wave plate doffer of welded metal bellow comprises lower membrane module 100 and upper die component 200.
With reference to figure 3 to Fig. 5, lower membrane module 100 comprises that end face has the die shoe 110 in heavy hole, be loaded on the cutting die 120 of the ring-type in the heavy hole, outer holding pad 130 and circular interior holding pad 140 with open circles, wherein outer holding pad 130 is preferably annular, the upper end of cutting die 120 protrudes from die shoe 110 end faces, and the end face of cutting die 120 is wave plate shape curved surface, outer holding pad 130 is fixed on the die shoe 110 by screw, the inwall of outer holding pad 130 fits in the outer wall of cutting die 120, and the end face of outer holding pad 130 is concordant with the outer top surface of cutting die 120, has the first chamfering 131 with outer holding pad 130 tops of cutting die 120 joint places, preferred the first chamfering 131 is oblique chamfering in the present embodiment, and the length of going of its end face is 1.7mm, and the angle of chamfering line and end face is 30 °.Interior holding pad 140 places in the cutting die 120, the flexible push rod 150 of its underrun is connected to die shoe 120, the outer wall of interior holding pad 140 fits in the inwall of cutting die 120, and the end face peak of the end face of interior holding pad 140 and cutting die 120 is concordant, has the second chamfering 141 with interior holding pad 140 tops of cutting die 120 joint places, preferred the second chamfering 141 is oblique chamfering in the present embodiment, and the length of going of its end face is 2mm, and the angle of chamfering line and end face is 30 °.The bottom of cutting die 120 also is provided with base plate 121, the edge all has the convex edge (111 that fastens for mutually on the heavy hole of base plate 121 outers and die shoe 110,123), and the bottom, heavy hole of die shoe 110 is a separable cushion block 112, the base plate 121 of cutting die 120 places on this cushion block 112, be evenly equipped with some through holes 122 on the base plate 121 of cutting die 120, described push rod 150 is positioned at through hole 122 and its two ends are connected to respectively cushion block 112 and holding pad 140, and push rod 150 is higher than the base plate 121 of cutting die 120.
The heavy stand that the end face outside of outer holding pad 130 has ring-type, and interior holding pad 140 end faces have circular heavy stand; The internal diameter of rubber-type template 220 equals the heavy stand diameter of interior holding pad 140, and the external diameter of rubber-type template 220 equals the heavy stand internal diameter of outer holding pad 130.
Upper die component 200 is descending at a slow speed, rubber-type template 220 contacts with the wave plate strip first, the wave plate strip is adjacent to cutting die 120 curved surfaces by rubber extruded, begin to take shape waveform, because of the wave plate strip by the rubber-type template 220 soft wave plates that are squeezed into, the extrusion stress after the wave plate moulding is little, can stress do not recover and be out of shape, be that wave plate produces the limit of wriggling, so the wave plate parameter is accurate, accuracy of waveform is high; Kept pressure 2 seconds, the pressure that continues makes rubber flow into the first chamfering 131 of external pressure flitch 130 internal diameters and the space of cutting die 120 formation, and the space of the second chamfering 141 of interior holding pad 140 external diameters and cutting die 120 formation, the pressure of the rubber in above-mentioned the first chamfering 131 and the second chamfering 141 and the edge of a knife acting in conjunction of cutting die 120 internal-and external diameters, produce under the pressure that continues, make the wave plate strip surpass its ultimate tensile strength, the wave plate internal-and external diameter is cut off simultaneously, in like manner, pressure when cutting off the wave plate internal-and external diameter is balanced soft extruding, the extrusion stress that wave plate produces when cutting off wave plate is little, and the wave plate edge is without burr; In addition, because employing is soft to hard blanking pattern, little, the long service life of mould loss; Upper and lower mould is not high to the mould required precision, and the mould check and correction is fast and simple.Doffer is simple in structure, dismounting and easy to maintenance.Rubber-type template 220 is wear-out part, in that to guarantee in the situation of effective pressure that area with rubber pattern template 220 is designed into enough little, has reduced maintenance cost; Simultaneously, rubber inner panel 230, rubber outside plate 240 and rubber-type template 220 splits design, the pressure that can reduce rubber-type template 220 spreads to both sides, makes the pressure that cuts off wave plate more concentrated.
Cutting die 120 can be designed to the structure that inside top surface has downward inclination angle in the present embodiment, the angle of inclination angle and level is 40 ° ~ 47 °.Adopt above-mentioned off-chip mode can solve the problem of the wave plate moulding of this class band leaning angle.
The material of rubber-type template 220 is preferably the polyurethane rubber of Shao Shi 95 ± 2A, and cutting die 120 materials are preferably Cr12MoV, and push rod 150 materials are preferably the polyurethane rubber of Shao Shi 80A.Polyurethane rubber stroke submissile recovers, through practice test, and reusable nearly 20,000 times of a slice rubber mat plate.
Wave plate is divided into lug and recessed, only need change cutting die 120 when off-chip is produced and get final product.
Certainly, above embodiment just is explanation rather than restriction the present invention, the above only is preferred embodiment of the present invention, so all equivalences of doing according to the described scheme of patent claim of the present invention change or modify, is included in the patent claim of the present invention.
Claims (6)
1. the wave plate doffer of a welded metal bellow comprises lower membrane module and upper die component, it is characterized in that:
Lower membrane module comprises that end face has the die shoe in heavy hole, is loaded on the cutting die of the ring-type in the heavy hole, has outer holding pad and the circular interior holding pad of open circles,
The upper end of cutting die protrudes from the die shoe end face, and the end face of cutting die is wave plate shape curved surface,
Outer holding pad is fixed on the die shoe, and the open circles inwall of outer holding pad fits in the outer wall of cutting die, and the end face of outer holding pad is concordant with the outer top surface of cutting die, has the first chamfering with the outer holding pad top of cutting die joint place,
Interior holding pad places in the cutting die, the flexible push rod of its underrun is connected to die shoe, the outer wall of interior holding pad fits in the inwall of cutting die, and the end face peak of the end face of interior holding pad and cutting die is concordant, has the second chamfering with the interior holding pad top of cutting die joint place;
Upper die component comprises upper bolster, and the bottom surface of this upper bolster is fixed with the rubber-type template, and the bottom surface of this rubber-type template is the plane.
2. the wave plate doffer of a kind of welded metal bellow according to claim 1, it is characterized in that: the inside top surface of described cutting die has downward inclination angle, and the angle of inclination angle and level is 40 ° ~ 47 °.
3. the wave plate doffer of a kind of welded metal bellow according to claim 1, it is characterized in that: the material of described rubber-type template is the polyurethane rubber of Shao Shi 95 ± 2A, the cutting die material is Cr12MoV.
4. the wave plate doffer of a kind of welded metal bellow according to claim 1, it is characterized in that: the bottom of described cutting die also is provided with base plate, fasten along mutual on the heavy hole of base plate outer and die shoe, and the bottom, heavy hole of die shoe is a separable cushion block, the base plate of cutting die places on this cushion block, be evenly equipped with some through holes on the base plate of cutting die, described push rod is positioned at through hole and its two ends are connected to respectively cushion block and holding pad, and push rod is higher than the base plate of cutting die.
5. the wave plate doffer of a kind of welded metal bellow according to claim 1 is characterized in that:
Described rubber-type template is annular, and described upper die component also comprises the rubber inner panel of the circle that is fixed in the upper bolster bottom surface and with the rubber outside plate of open circles, the rubber-type template clamp places between rubber inner panel and the rubber outside plate;
The heavy stand that the end face outside of described outer holding pad has ring-type, and interior holding pad end face has circular heavy stand;
The internal diameter of rubber-type template equals the heavy stand diameter of interior holding pad, and the external diameter of rubber-type template equals the heavy stand internal diameter of outer holding pad.
6. the wave plate doffer of a kind of welded metal bellow according to claim 1, it is characterized in that: the first chamfering of described outer holding pad is oblique chamfering, the length of going of its end face is 1.7mm, the angle of chamfering line and end face is 30 °, and the second chamfering of interior holding pad is oblique chamfering, the length of going of its end face is 2mm, and the angle of chamfering line and end face is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512441.0A CN102962317B (en) | 2012-12-05 | 2012-12-05 | Wave plate falling device of welded metal corrugated pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512441.0A CN102962317B (en) | 2012-12-05 | 2012-12-05 | Wave plate falling device of welded metal corrugated pipe |
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| Publication Number | Publication Date |
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| CN102962317A true CN102962317A (en) | 2013-03-13 |
| CN102962317B CN102962317B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210512441.0A Active CN102962317B (en) | 2012-12-05 | 2012-12-05 | Wave plate falling device of welded metal corrugated pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626805A (en) * | 2017-11-13 | 2018-01-26 | 江苏省埃迪机电设备实业有限公司 | The quick trimming device of metal bellows and the method for the quick trimming of metal bellows |
| CN112893678A (en) * | 2021-02-01 | 2021-06-04 | 南昌航空大学 | Manufacturing method of W-shaped multi-stack ring |
| CN112893601A (en) * | 2021-02-01 | 2021-06-04 | 南昌航空大学 | Stamping forming die for multi-waveform ring parts |
| CN112893602A (en) * | 2021-02-01 | 2021-06-04 | 南昌航空大学 | Stamping forming die for single-waveform ring parts |
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| CN202105908U (en) * | 2011-04-29 | 2012-01-11 | 桂林福达股份有限公司 | Diaphragm spring punched window and separation finger slot die |
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| CN203076404U (en) * | 2012-12-05 | 2013-07-24 | 东莞市华汇精密机械有限公司 | Corrugated plate blanking device for welded metal corrugated tubes |
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| SU1523224A1 (en) * | 1987-06-15 | 1989-11-23 | Предприятие П/Я М-5514 | Die for extruding parts |
| CN101564743A (en) * | 2009-06-05 | 2009-10-28 | 北京兴达波纹管有限公司 | Precise corrugated pipe forming machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626805A (en) * | 2017-11-13 | 2018-01-26 | 江苏省埃迪机电设备实业有限公司 | The quick trimming device of metal bellows and the method for the quick trimming of metal bellows |
| CN112893678A (en) * | 2021-02-01 | 2021-06-04 | 南昌航空大学 | Manufacturing method of W-shaped multi-stack ring |
| CN112893601A (en) * | 2021-02-01 | 2021-06-04 | 南昌航空大学 | Stamping forming die for multi-waveform ring parts |
| CN112893602A (en) * | 2021-02-01 | 2021-06-04 | 南昌航空大学 | Stamping forming die for single-waveform ring parts |
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| CN102962317B (en) | 2014-11-05 |
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Denomination of invention: Wave plate falling device of welded metal corrugated pipe Effective date of registration: 20170804 Granted publication date: 20141105 Pledgee: China Co. truction Bank Corp Dongguan branch Pledgor: DONGGUAN HUAHUI PRECISION MACHINERY CO.,LTD. Registration number: 2017990000712 |
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Date of cancellation: 20220620 Granted publication date: 20141105 Pledgee: China Co. truction Bank Corp Dongguan branch Pledgor: DONGGUAN HUAHUI PRECISION MACHINERY CO.,LTD. Registration number: 2017990000712 |
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Address after: Room 1101, No. 11, 1st Road, Sanyong Industrial Park, Zhongtang Town, Dongguan City, Guangdong Province, 523507 Patentee after: Guangdong Huahui Intelligent Equipment Co.,Ltd. Address before: 523000 Chajiao Industrial Park, Zhongtang Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN HUAHUI PRECISION MACHINERY CO.,LTD. |