CN203076404U - Corrugated plate blanking device for welded metal corrugated tubes - Google Patents
Corrugated plate blanking device for welded metal corrugated tubes Download PDFInfo
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- CN203076404U CN203076404U CN 201220660158 CN201220660158U CN203076404U CN 203076404 U CN203076404 U CN 203076404U CN 201220660158 CN201220660158 CN 201220660158 CN 201220660158 U CN201220660158 U CN 201220660158U CN 203076404 U CN203076404 U CN 203076404U
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Abstract
The utility model discloses a corrugated plate blanking device for welded metal corrugated tubes. According to the design, the corrugated plate blanking device is characterized in that a lower die assembly comprises a lower die base, a cutting die, an outer material-pressing plate and an inner material-pressing plate. The upper end of the cutting die protrudes out of the top surface of the lower die base, the top surface of the cutting die is a corrugated plate curved surface, the outer material-pressing plate is attached to the outer wall of the cutting die, and the top surface of the outer material-pressing plate is flushed with the top surface of the outer side of the cutting die. A first chamfer is arranged at the top end of the position, attached to the cutting die, of the outer material-pressing plate. The inner material-pressing plate is placed in the cutting die, and the bottom face of the inner material-pressing plate is connected on the lower die base through elastic ejector rods in an abutting-against mode. The inner material-pressing plate is attached to the inner wall of the cutting die, the top surface of the inner material-pressing plate is flushed with the highest point of the top surface of the cutting die, and a second chamfer is arranged at the top end of the position, attached to the cutting die, of the inner material-pressing plate. An upper die assembly comprises a rubber type die plate fixed on the bottom surface of an upper die base, and the bottom surface of the rubber type die plate is a flat surface. The rubber die plate carries out soft extrusion forming and cutting on a corrugated plate, extrusion stress generated by the corrugated plate is small, the phenomenon that the corrugated plate transforms due to recovery of the stress can not happen, and a formed corrugated plate is accurate in parameters and free of burrs.
Description
Technical field
The utility model 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 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 the bellows wave plate so.
The circumferential wave plate shape that present most of welded metal bellow sealing supplier or manufacturer can provide, interior external diameter edge mostly is radially straight flange, claims the straight knife wave plate again, 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, though it is stressed that this wave plate helps bellows, but the wave plate moulding is difficulty very, especially the wave plate inner radius exists burr, adhesion, cuts phenomenons such as continuous when blanking, waveform instability when the wave plate of forming belt leaning angle, reach 0.1-0.3mm with external diameter numerical error in a collection of wave plate, influence welding and sealing effectiveness.The negative and positive die dashes material as adopting up and down, 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 studying carefully its cause is exactly the blanking forming difficulty of original wave plate.
The utility model content
The purpose of this utility model provides a kind of wave plate doffer of welded metal bellow.
The wave plate doffer of a kind of welded metal bellow that provides according to the utility model, comprise membrane module and upper die component down, wherein, following 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 a 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 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 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 earlier, 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, the accuracy of waveform height; Continuing under the pressure, rubber flows into first chamfering of outer holding pad internal diameter and space and second chamfering of interior holding pad external diameter and the space that cutting die forms of cutting die formation, the edge of a knife acting in conjunction of external diameter in the pressure of the rubber in above-mentioned first chamfering and second chamfering and the cutting die, produce under the pressure that continues, make the wave plate strip surpass its ultimate tensile strength, external diameter is cut off simultaneously in the wave plate, in like manner, pressure when cutting off external diameter in the wave plate be the soft extruding of equilibrium, the extrusion stress that wave plate produces when cutting off wave plate is little, and the wave plate edge does not have 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 of the wave plate moulding of band 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, the upper edge, heavy hole of base plate outer and die shoe fastens mutually, 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 cushion block and holding pad respectively, 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 the rubber outside plate of band open circles, and the rubber-type template is folded 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 equal or be slightly less than in the heavy stand diameter of 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 a wear-out part, is guaranteeing under the situation of effective pressure that area design with the rubber pattern template to 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, 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 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
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Fig. 1 is the cross-sectional view of the wave plate doffer of a kind of welded metal bellow of providing of the utility model embodiment.
Fig. 2 is the product decomposing schematic representation of the wave plate doffer of a kind of welded metal bellow of providing of the utility model embodiment.
Fig. 3 is the partial schematic diagram of cross-section structure behind the matched moulds among the utility model embodiment.
Fig. 4 is the partial schematic diagram of cutting die cross-section structure among the utility model embodiment.
Fig. 5 is the schematic perspective view of cutting die among the utility model embodiment.
The specific embodiment
With reference to figure 1 and Fig. 2, a kind of wave plate doffer of welded metal bellow comprises membrane module 100 and upper die component 200 down.
With reference to figure 3 to Fig. 5, following 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 a 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 first chamfering 131 with outer holding pad 130 tops of cutting die 120 joint places, preferred 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 second chamfering 141 with interior holding pad 140 tops of cutting die 120 joint places, preferred 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 upper edge, heavy hole of base plate 121 outers and die shoe 110 all has the convex edge (111 that is used for mutual fastening, 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 cushion block 112 and holding pad 140 respectively, 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 heavy stand diameter of holding pad 140 in the internal diameter of rubber-type template 220 equals, 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 earlier, 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, the accuracy of waveform height; Keep-uped pressure 2 seconds, the pressure that continues makes rubber flow into first chamfering 131 of outer holding pad 130 internal diameters and the space of cutting die 120 formation, and the space of second chamfering 141 of interior holding pad 140 external diameters and cutting die 120 formation, the edge of a knife acting in conjunction of external diameter in the pressure of the rubber in above-mentioned first chamfering 131 and second chamfering 141 and the cutting die 120, produce under the pressure that continues, make the wave plate strip surpass its ultimate tensile strength, external diameter is cut off simultaneously in the wave plate, in like manner, pressure when cutting off external diameter in the wave plate be the soft extruding of equilibrium, the extrusion stress that wave plate produces when cutting off wave plate is little, and the wave plate edge does not have 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 a wear-out part, is guaranteeing under the situation of effective pressure that area design with rubber pattern template 220 to 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 utility model, the above only is preferred embodiment of the present utility model, so all equivalences of being done according to the described scheme of the utility model patent claim change or modify, is included in the utility model patent claim.
Claims (6)
1. the wave plate doffer of a welded metal bellow comprises membrane module and upper die component down, it is characterized in that:
Following 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 the 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 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 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, the upper edge, heavy hole of base plate outer and die shoe fastens mutually, 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 cushion block and holding pad respectively, 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 an 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 the rubber outside plate of band open circles, and the rubber-type template is folded 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 heavy stand diameter of holding pad in the internal diameter of rubber-type template equals, 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: 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 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 |
|---|---|---|---|
| CN 201220660158 CN203076404U (en) | 2012-12-05 | 2012-12-05 | Corrugated plate blanking device for welded metal corrugated tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660158 CN203076404U (en) | 2012-12-05 | 2012-12-05 | Corrugated plate blanking device for welded metal corrugated tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203076404U true CN203076404U (en) | 2013-07-24 |
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ID=48822282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220660158 Withdrawn - After Issue CN203076404U (en) | 2012-12-05 | 2012-12-05 | Corrugated plate blanking device for welded metal corrugated tubes |
Country Status (1)
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|---|---|
| CN (1) | CN203076404U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962317A (en) * | 2012-12-05 | 2013-03-13 | 东莞市华汇精密机械有限公司 | Wave plate falling device of welded metal corrugated pipe |
| CN109332482A (en) * | 2018-10-23 | 2019-02-15 | 上海航天设备制造总厂有限公司 | A kind of accumulator bellows diaphragm optimization process for stamping and forming method |
| 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 |
-
2012
- 2012-12-05 CN CN 201220660158 patent/CN203076404U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962317A (en) * | 2012-12-05 | 2013-03-13 | 东莞市华汇精密机械有限公司 | Wave plate falling device of welded metal corrugated pipe |
| CN102962317B (en) * | 2012-12-05 | 2014-11-05 | 东莞市华汇精密机械有限公司 | Wave plate falling device of welded metal corrugated pipe |
| CN109332482A (en) * | 2018-10-23 | 2019-02-15 | 上海航天设备制造总厂有限公司 | A kind of accumulator bellows diaphragm optimization process for stamping and forming method |
| 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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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20141105 |
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| RGAV | Abandon patent right to avoid regrant |