CN105921578A - Metal punch forming device with noise reduction function - Google Patents
Metal punch forming device with noise reduction function Download PDFInfo
- Publication number
- CN105921578A CN105921578A CN201610422653.8A CN201610422653A CN105921578A CN 105921578 A CN105921578 A CN 105921578A CN 201610422653 A CN201610422653 A CN 201610422653A CN 105921578 A CN105921578 A CN 105921578A
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- CN
- China
- Prior art keywords
- noise
- sound
- connects
- buffer spring
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 18
- 230000009467 reduction Effects 0.000 title abstract description 11
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000011491 glass wool Substances 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000004630 mental health Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011946 reduction process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/10—Stamping using yieldable or resilient pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a metal punch forming device with a noise reduction function. The metal punch forming device with the noise reduction function comprises an upper base. An electric telescopic rod is arranged at the bottom of the upper base. A male die is arranged at the bottom of the electric telescopic rod. Fixing supports are symmetrically arranged on the two sides of the upper base. A lower base is arranged at the bottom of the male die. A female die matched with the male die is arranged at the top of the lower base. According to the metal punch forming device with the noise reduction function, through the buffering function of a buffer spring, a buffer cushion and a rubber buffer column, severe noise pollution caused by strong collision during operation of a metal punching piece is reduced; noise is absorbed and weakened through a noise reduction device, and noise pollution is avoided; and the influence of the noise on the daily work and physical and mental health of operators is reduced, the working efficiency of the operators is improved, the economic benefits of enterprises are increased, and the applicability is high.
Description
Technical field
The present invention relates to metallic stamping pieces processing technique field, a kind of metal stamping formed device with decrease of noise functions.
Background technology
Punch process is by mean of the power of conventional or special pressing equipment, makes plate directly by deformation force and deform in mould, thus obtains definite shape, the production technology of the product parts of size and performance.Plate, mould and equipment are the three elements of punch process.Punch process is a kind of metal cold deformation processing method.So, it is referred to as cold stamping or sheet-metal press working, is called for short punching press.It is one of main method of Metal Forming (or pressure processing), is also under the jurisdiction of material molding engineering.Metallic stamping pieces often produces huge noise in the course of processing, and routine work and physical and mental health on operator cause certain impact, reduce the work efficiency of operator, affect the economic benefit of enterprise, poor for applicability.
Summary of the invention
It is an object of the invention to provide a kind of metal stamping formed device with decrease of noise functions, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of metal stamping formed device with decrease of noise functions, including top base, the bottom of described top base is provided with electric expansion bar, the bottom of described electric expansion bar is provided with punch, the lateral symmetry of described top base is provided with fixed support, and the bottom of described punch is provided with bottom base, and the top of described bottom base is provided with the die suitable with punch.
Described die be internally provided with abatvoix, the bottom of described abatvoix is provided with buffer spring, one end of described buffer spring is connected with the bottom of abatvoix, the other end of described buffer spring is connected with cushion pad, described cushion pad is positioned at the bottom of buffer spring, described cushion pad be internally provided with rubber buffer post, the chute suitable with abatvoix is offered on described die, described bottom base be internally provided with funnel sound collector, described bottom base is positioned at the side inwall of funnel sound collector and offers through hole, described one end of funnel sound collector connects with one end of connecting tube, the other end of described connecting tube connects with one end of noise-decreasing device, the other end of described noise-decreasing device connects with one end of sound tube, the other end of described sound tube sequentially passes through bottom base and fixed support and extends to support bracket fastened outside.
Preferably, described noise-decreasing device be internally provided with sound arrester, one end of described sound arrester connects with connecting tube, the other end of described sound arrester connects with one end of voice conducting pipe, the other end of described voice conducting pipe connects with one end of dissipative muffler, and the other end of described dissipative muffler connects with sound tube.
Preferably, the quantity of described buffer spring is six, and six buffer springs are isodistantly spaced arrangement, and the quantity of described rubber buffer post is 11, and 11 rubber buffer posts are isodistantly spaced arrangement.
Preferably, the inside of described sound arrester is disposed with acoustical cotton layer, ecological sound-absorbing flaggy and centrifugal glass wool layer by the right side a to left side.
Compared with prior art, the invention has the beneficial effects as follows: this has the metal stamping formed device of decrease of noise functions, by buffer spring, cushion pad and the cushioning effect of rubber buffer post, reduce the huge noise pollution that metallic stamping pieces operationally produces because of strong collision, by denoising device, noise absorption is weakened again, avoid producing noise pollution, reduce the routine work on operator and the physically and mentally healthy impact caused, improve the work efficiency of operator, increasing the economic benefit of enterprise, the suitability is strong.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the internal structure profile of bottom base of the present invention；
Fig. 3 is the internal structure schematic diagram of noise-decreasing device of the present invention；
Fig. 4 is the internal structure schematic diagram of dissipative muffler of the present invention；
Fig. 5 is the structure front view of dissipative muffler of the present invention.
In figure: 1 top base, 2 electric expansion bars, 3 punch, 4 fixed supports, 5 bottom bases, 6 dies, 7 abatvoixs, 8 buffer springs, 9 cushion pads, 10 rubber buffer posts, 11 funnel sound collectors, 12 connecting tubes, 13 noise-decreasing devices, 14 sound tubes, 15 sound arresters, 151 acoustical cotton layers, 152 ecological sound-absorbing flaggy, 153 centrifugal glass wool layers, 16 voice conducting pipes, 17 dissipative mufflers.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1-5, the present invention provides a kind of technical scheme: a kind of metal stamping formed device with decrease of noise functions, including top base 1, the bottom of top base 1 is provided with electric expansion bar 2, and the bottom of electric expansion bar 2 is provided with punch 3, and electric expansion bar 2 drives punch 3 to move up and down, manufacture metallic stamping pieces, the lateral symmetry of top base 1 is provided with fixed support 4, and the bottom of punch 3 is provided with bottom base 5, and the top of bottom base 5 is provided with the die 6 suitable with punch 3.
nullDie 6 be internally provided with abatvoix 7，Punch 3 and the noise produced during die 6 punching press are carried out absorbing reduction by abatvoix 7，The bottom of abatvoix 7 is provided with buffer spring 8，One end of buffer spring 8 is connected with the bottom of abatvoix 7，Stamping press during mould punching is tentatively buffered by buffer spring 8，Avoid producing huge noise，The other end of buffer spring 8 is connected with cushion pad 9，Cushion pad 9 is positioned at the bottom of buffer spring 8，Cushion pad 9 be internally provided with rubber buffer post 10，Stamping press is finally weakened absorption by cushion pad 9 and rubber buffer post 10，Avoid producing huge noise，Cause noise pollution，The quantity of buffer spring 8 is six，Six buffer springs 8 are isodistantly spaced arrangement，The quantity of rubber buffer post 10 is 11，And 11 rubber buffer posts 10 are isodistantly spaced arrangement，The chute suitable with abatvoix 7 is offered on die 6，Bottom base 5 be internally provided with funnel sound collector 11，Bottom base 5 is positioned at the side inwall of funnel sound collector 11 and offers through hole，One end of funnel sound collector 11 connects with one end of connecting tube 12，The other end of connecting tube 12 connects with one end of noise-decreasing device 13，Punch 3 and die 6 are when manufacturing metallic stamping pieces，The noise produced due to hard hit passes through through hole，Enter in bottom base 5，Collected by funnel sound collector 11 in connecting tube 12 is delivered to noise-decreasing device 13, carries out noise reduction process，The other end of noise-decreasing device 13 connects with one end of sound tube 14，Noise-decreasing device 13 be internally provided with sound arrester 15，One end of sound arrester 15 connects with connecting tube 12，The inside of sound arrester 15 is disposed with acoustical cotton layer 151 by the right side a to left side、Ecological sound-absorbing flaggy 152 and centrifugal glass wool layer 153，Noise transmission in connecting tube 12 is in sound arrester 15，By acoustical cotton layer 151 initial absorption，Through ecological sound-absorbing flaggy 152 double absorption，Finally finally absorbed reduction by centrifugal glass wool layer 153 to spread out of in sound arrester 15，The other end of sound arrester 15 connects with one end of voice conducting pipe 16，The other end of voice conducting pipe 16 connects with one end of dissipative muffler 17，The other end of dissipative muffler 17 connects with sound tube 14，The other end of sound tube 14 sequentially passes through bottom base 5 and fixed support 4 and extends to the outside of fixed support 4，Voice conducting pipe 16 carries out final noise reduction process by absorbing the noise transmission after weakening in sound arrester 15 in dissipative muffler 17，Noise after final noise reduction process is discharged by sound tube 14，Reach good noise abatement purpose，Avoid producing noise pollution，Reduce the routine work on operator and the physically and mentally healthy impact caused，Improve the work efficiency of operator，Increase the economic benefit of enterprise，The suitability is strong.
nullOperation principle: punch 3 and die 6 are when manufacturing metallic stamping pieces，Owing to punch 3 and die 6 hard hit can produce huge noise pollution，When punch 3 contacts with die 6，Originally buffer spring 8 walks the effect of buffering to stamping press，Final cushioning effect is carried out again by cushion pad 9 and rubber shock absorber strut 10，Stamping press is absorbed and weakens，The noise produced when reduction punch 3 and die 6 clash into，Abatvoix 7 absorbs sub-fraction noise，Major part noise absorbs in being entered noise-decreasing device 13 by through hole by funnel sound collector 11 and weakens，Weakened by acoustical cotton layer 151 initial absorption in sound arrester 15、Ecological sound-absorbing flaggy 152 carries out double absorption reduction，Rotary glass flaggy 153 finally absorbs reduction，Voice conducting pipe 14 carries out final noise abatement process in entering dissipative muffler 17，Finally spread out of by sound tube 14，Reach good noise reduction purpose.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can carry out multiple change without departing from the principles and spirit of the present invention, revise, replace and modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a metal stamping formed device with decrease of noise functions, including top base (1), it is characterized in that: the bottom of described top base (1) is provided with electric expansion bar (2), the bottom of described electric expansion bar (2) is provided with punch (3), the lateral symmetry of described top base (1) is provided with fixed support (4), the bottom of described punch (3) is provided with bottom base (5), and the top of described bottom base (5) is provided with the die (6) suitable with punch (3)；
nullDescribed die (6) be internally provided with abatvoix (7)，The bottom of described abatvoix (7) is provided with buffer spring (8)，One end of described buffer spring (8) is connected with the bottom of abatvoix (7)，The other end of described buffer spring (8) is connected with cushion pad (9)，Described cushion pad (9) is positioned at the bottom of buffer spring (8)，Described cushion pad (9) be internally provided with rubber buffer post (10)，The chute suitable with abatvoix (7) is offered on described die (6)，Described bottom base (5) be internally provided with funnel sound collector (11)，Described bottom base (5) is positioned at the side inwall of funnel sound collector (11) and offers through hole，One end of described funnel sound collector (11) connects with one end of connecting tube (12)，The other end of described connecting tube (12) connects with one end of noise-decreasing device (13)，The other end of described noise-decreasing device (13) connects with one end of sound tube (14)，The other end of described sound tube (14) sequentially passes through bottom base (5) and fixed support (4) and extends to the outside of fixed support (4).
A kind of metal stamping formed device with decrease of noise functions the most according to claim 1, it is characterized in that: described noise-decreasing device (13) be internally provided with sound arrester (15), one end of described sound arrester (15) connects with connecting tube (12), the other end of described sound arrester (15) connects with one end of voice conducting pipe (16), the other end of described voice conducting pipe (16) connects with one end of dissipative muffler (17), and the other end of described dissipative muffler (17) connects with one end of sound tube (14).
A kind of metal stamping formed device with decrease of noise functions the most according to claim 1, it is characterized in that: the quantity of described buffer spring (8) is six, six buffer springs (8) are isodistantly spaced arrangement, the quantity of described rubber buffer post (10) is 11, and 11 rubber buffer posts (10) are isodistantly spaced arrangement.
A kind of metal stamping formed device with decrease of noise functions the most according to claim 2, it is characterised in that: the inside of described sound arrester (15) is disposed with acoustical cotton layer (151), ecological sound-absorbing flaggy (152) and centrifugal glass wool layer (153) by the right side a to left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422653.8A CN105921578B (en) | 2016-06-15 | 2016-06-15 | A kind of metal stamping formed device with decrease of noise functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422653.8A CN105921578B (en) | 2016-06-15 | 2016-06-15 | A kind of metal stamping formed device with decrease of noise functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105921578A true CN105921578A (en) | 2016-09-07 |
| CN105921578B CN105921578B (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610422653.8A Expired - Fee Related CN105921578B (en) | 2016-06-15 | 2016-06-15 | A kind of metal stamping formed device with decrease of noise functions |
Country Status (1)
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| CN (1) | CN105921578B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670247A (en) * | 2017-02-24 | 2017-05-17 | 武汉蛋玩科技有限公司 | Drawing die |
| CN106694675A (en) * | 2017-01-05 | 2017-05-24 | 滁州美业机械制造有限公司 | Refrigerator door stamping device with locating groove |
| CN107159790A (en) * | 2017-04-12 | 2017-09-15 | 滁州市东华模具制造有限公司 | A kind of automotive steering oil pipe connector servo cold-punching mould |
| CN107350357A (en) * | 2017-08-31 | 2017-11-17 | 芜湖凝鑫机械有限公司 | Can noise reduction anti-skid bulge diel |
| CN110405035A (en) * | 2019-07-26 | 2019-11-05 | 苏州斯尔斯特新材料科技有限公司 | A kind of small automobile-used part punching device of pesticide spraying |
| CN111421054A (en) * | 2020-03-16 | 2020-07-17 | 李学海 | Continuous stamping die |
| CN111816429A (en) * | 2020-06-06 | 2020-10-23 | 杭州智频科技有限公司 | Low-noise series reactor |
| CN112517735A (en) * | 2020-11-06 | 2021-03-19 | 日照兴业汽车配件股份有限公司 | Longeron airfoil production line that punches a hole |
| CN114393111A (en) * | 2021-12-24 | 2022-04-26 | 芜湖亿联旋压科技有限公司 | Stamping die with noise reduction function |
| CN114834082A (en) * | 2022-06-28 | 2022-08-02 | 海门市隆茂金属制品有限公司 | Metal plate mute processing equipment |
| CN119476046A (en) * | 2025-01-10 | 2025-02-18 | 国网甘肃省电力公司白银供电公司 | Noise reduction method for UPS chassis stamping |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0486344B1 (en) * | 1990-11-13 | 1995-03-15 | Valdunes | Method and device for the manufacture of a sound-damping wheel, especially for rail vehicles |
| CN102896216A (en) * | 2012-09-17 | 2013-01-30 | 芜湖世达模具有限公司 | Stamping die |
| CN103464588A (en) * | 2013-09-03 | 2013-12-25 | 昆山旭龙精密机械有限公司 | Modified stamping tool |
| CN103846343A (en) * | 2012-12-07 | 2014-06-11 | 杨永明 | Continuous stamping die with silencing function |
| CN203764785U (en) * | 2014-04-08 | 2014-08-13 | 扬州恒德模具有限公司 | Noise reduction die |
| CN104096744A (en) * | 2014-07-23 | 2014-10-15 | 成都市龙泉驿区齐盛机械厂 | Low-noise punching die |
| CN104384308A (en) * | 2014-12-19 | 2015-03-04 | 常熟市古里镇淼泉浩军金属模具厂 | Stamping die |
| CN205702008U (en) * | 2016-06-15 | 2016-11-23 | 常州市荣顺电子有限公司 | A kind of metal stamping formed device with decrease of noise functions |
-
2016
- 2016-06-15 CN CN201610422653.8A patent/CN105921578B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0486344B1 (en) * | 1990-11-13 | 1995-03-15 | Valdunes | Method and device for the manufacture of a sound-damping wheel, especially for rail vehicles |
| CN102896216A (en) * | 2012-09-17 | 2013-01-30 | 芜湖世达模具有限公司 | Stamping die |
| CN103846343A (en) * | 2012-12-07 | 2014-06-11 | 杨永明 | Continuous stamping die with silencing function |
| CN103464588A (en) * | 2013-09-03 | 2013-12-25 | 昆山旭龙精密机械有限公司 | Modified stamping tool |
| CN203764785U (en) * | 2014-04-08 | 2014-08-13 | 扬州恒德模具有限公司 | Noise reduction die |
| CN104096744A (en) * | 2014-07-23 | 2014-10-15 | 成都市龙泉驿区齐盛机械厂 | Low-noise punching die |
| CN104384308A (en) * | 2014-12-19 | 2015-03-04 | 常熟市古里镇淼泉浩军金属模具厂 | Stamping die |
| CN205702008U (en) * | 2016-06-15 | 2016-11-23 | 常州市荣顺电子有限公司 | A kind of metal stamping formed device with decrease of noise functions |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694675A (en) * | 2017-01-05 | 2017-05-24 | 滁州美业机械制造有限公司 | Refrigerator door stamping device with locating groove |
| CN106670247A (en) * | 2017-02-24 | 2017-05-17 | 武汉蛋玩科技有限公司 | Drawing die |
| CN107159790A (en) * | 2017-04-12 | 2017-09-15 | 滁州市东华模具制造有限公司 | A kind of automotive steering oil pipe connector servo cold-punching mould |
| CN107350357A (en) * | 2017-08-31 | 2017-11-17 | 芜湖凝鑫机械有限公司 | Can noise reduction anti-skid bulge diel |
| CN110405035A (en) * | 2019-07-26 | 2019-11-05 | 苏州斯尔斯特新材料科技有限公司 | A kind of small automobile-used part punching device of pesticide spraying |
| CN111421054A (en) * | 2020-03-16 | 2020-07-17 | 李学海 | Continuous stamping die |
| CN111816429A (en) * | 2020-06-06 | 2020-10-23 | 杭州智频科技有限公司 | Low-noise series reactor |
| CN112517735A (en) * | 2020-11-06 | 2021-03-19 | 日照兴业汽车配件股份有限公司 | Longeron airfoil production line that punches a hole |
| CN114393111A (en) * | 2021-12-24 | 2022-04-26 | 芜湖亿联旋压科技有限公司 | Stamping die with noise reduction function |
| CN114834082A (en) * | 2022-06-28 | 2022-08-02 | 海门市隆茂金属制品有限公司 | Metal plate mute processing equipment |
| CN119476046A (en) * | 2025-01-10 | 2025-02-18 | 国网甘肃省电力公司白银供电公司 | Noise reduction method for UPS chassis stamping |
| CN119476046B (en) * | 2025-01-10 | 2025-04-25 | 国网甘肃省电力公司白银供电公司 | Noise reduction method suitable for stamping forming of UPS (uninterrupted Power supply) case |
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| CN105921578B (en) | 2017-09-19 |
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