CN101961749A - Punching device for loudspeaker magnetic conduction slice - Google Patents
Punching device for loudspeaker magnetic conduction slice Download PDFInfo
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- CN101961749A CN101961749A CN 201010257139 CN201010257139A CN101961749A CN 101961749 A CN101961749 A CN 101961749A CN 201010257139 CN201010257139 CN 201010257139 CN 201010257139 A CN201010257139 A CN 201010257139A CN 101961749 A CN101961749 A CN 101961749A
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- 238000004080 punching Methods 0.000 title abstract description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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- 230000005236 sound signal Effects 0.000 description 1
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Abstract
The invention discloses a punching device for a loudspeaker magnetic conduction slice. The device comprises an upper template (3), a male die (4), a female die (7), a lower template (6), a guide post (5), a feeding device and a driving device, wherein the male die (4) is fixed at the bottom of the upper template (3); the female die (7) is fixed on the lower template (6); one end of the guide post (5) is connected with the lower template (6), while the other end is in slide fit with the upper template (3); both the feeding device and the driving device are connected to the lower template (6); and one end of the driving device is connected with the feeding device, while the other end is in slide fit with the upper template (3). After the adoption of the structure, feeding and punching are automatized and an operator can perform production continuously only by feeding a blank into a feeding barrel, so that production efficiency is improved greatly; simultaneously, the operator only needs to perform a feeding process without being directly contacted with the punching device, so that the occurrence probability of safety accidents is lowered greatly.
Description
Technical field
The present invention relates to the machine die field, specifically is a kind of hole punched device that is used for the loudspeaker magnetic conduction sheet.
Background technology
Loudspeaker is a kind of electroacoustic converting member, and it converts the sound signal of telecommunication to sound.General loudspeaker mainly is the combination that utilizes magnetite, vibrating diaphragm and voice coil loudspeaker voice coil, but produces suitable resistance via the resistance of modulation, so that electric current produces sound by the back.At present, known loudspeaker is made up of magnetic circuit system, vibrational system and support system.The kind of loudspeaker has a lot, as dynamic speaker, electromagnetic loudspeaker, crystal speaker or the like.Wherein, the electromagnetic loudspeaker sounding is by producing alternating magnetic field by the coil with AC signal, attract to repel magnetic conduction sheet, cause vibrating diaphragm, cone vibration, propagating sound by air dielectric again.The magnetic conduction sheet center of being generally wherein has the laminated structure of through hole, usually manufacturer can once go out the profile and the central through hole of magnetic conduction sheet on punch press by punch die, the punch die of prior art comprises cope match-plate pattern, punch, die, lower bolster and guide pillar, punch is fixed on the cope match-plate pattern bottom, die is fixed on the lower bolster, one end of guide pillar is connected with lower bolster, and the other end and cope match-plate pattern are slidingly matched.The general operation personnel go out a product after once can only putting into a blank with hand, and therefore, there is following shortcoming in this punching die:
1) owing to once can only go out a finished product, then put into next blank more by hand, the continuity of influence production causes its production efficiency extremely low so greatly;
2) simultaneously, put into blank by hand by the workman during operation,, as be flushed to hand if misoperation is easy to take place the personal safety accident.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and can enhance productivity greatly, avoid taking place the hole punched device that is used for the loudspeaker magnetic conduction sheet of personal safety accident.
For solving the problems of the technologies described above, the hole punched device that is used for the loudspeaker magnetic conduction sheet provided by the invention, comprise cope match-plate pattern, punch, die, lower bolster and guide pillar, described punch is fixed on the cope match-plate pattern bottom, die is fixed on the lower bolster, one end of described guide pillar is connected with lower bolster, the other end and cope match-plate pattern are slidingly matched, this device also comprises pay-off and drive unit, described pay-off and drive unit all are connected on the lower bolster, described drive unit one end is connected with pay-off, and the other end and cope match-plate pattern are slidingly connected.
Described pay-off comprises base plate, guide plate, delivery sheet and cartridge, described base plate is fixed on the lower bolster, described guide plate is two and is separately fixed at both sides, front and back on the base plate, two guide plates and base plate form a hopper, described cartridge is installed on two guide plates, and is positioned at the end near delivery sheet; Described delivery sheet is slidingly fitted in the hopper, an end of delivery sheet can stretch into or break away from cartridge under, the other end is connected with drive unit.
Described drive unit comprises tranverse connecting plate and is positioned at two grip assemblies of both sides, base plate front and back, connected by tranverse connecting plate between two grip assemblies; Every grip assembly comprises slide plate, slide plate cover and back-moving spring, and described slide plate cover is fixed on the lower bolster and is positioned at the guide plate outside, and described slide plate slides is engaged in the slide plate cover; Described tranverse connecting plate middle part is connected with delivery sheet, and two ends are connected with the slide plate of both sides, front and back respectively; One end of described each back-moving spring is connected with the tranverse connecting plate end, and the other end is connected with the slide plate cover.
The bottom surface of described cope match-plate pattern is connected with slide block, and described slide block has first inclined-plane; Described slide plate has riser away from an end of tranverse connecting plate, and the top of riser has the device that can roll or slide with first inclined-plane.
When riser top and the rolling of first inclined-plane, the top arrangement of riser is for being connected with bearing at the top of riser, and the outer circumference surface of described bearing rolls with first inclined-plane and cooperates.
When riser top and the slip of first inclined-plane, the top arrangement of riser has arc surface for the riser top, and this arc surface and first inclined-plane are slidingly matched.
Also be provided with stop gauge on the described base plate, described stop gauge is positioned at the end of base plate away from tranverse connecting plate.
Described stop gauge comprises backgauge nail, backgauge langrage spring, push rod and push rod spring, described base plate lower plane have can ccontaining push rod the push rod chamber, described push rod is slidingly fitted in the push rod chamber; Have up-small and down-big stepped hole on the base plate, and the axis normal of stepped hole is in the last plane of base plate; Described backgauge is followed closely to have the pin of major part, and is slidingly fitted in the stepped hole; Described backgauge langrage spring one end pushes against at the major part shaft shoulder place of backgauge nail, and the other end pushes against the step surface place at stepped hole; Described push rod head has second inclined-plane, and the big end surface of backgauge nail is slidingly fitted on second inclined-plane; Also have projection on the described push rod lower plane, have groove on the described lower bolster, described projection is slidingly fitted in the groove; Described push rod spring one end pushes against on the end face of groove, and the other end pushes against on projection; The outer afterbody of base plate that is positioned at of described push rod has the 3rd inclined-plane, and the end of described slide plate and the 3rd inclined-plane are slidingly matched.
Also be provided with stopping means on the described guide plate, this stopping means comprises spacing rubber, limit spring and holding screw; Described spacing rubber is embedded on the side of the formation hopper of a guide plate wherein, and spacing rubber is connected with holding screw by limit spring on the side away from hopper, and described limit spring and holding screw all are positioned at guide plate.
At least have a breach on the described cartridge, the direction of described breach is the axis direction of cartridge.
After adopting above structure, the present invention compared with prior art has following advantage:
1) because this hole punched device is provided with pay-off and drive unit, make feeding and punching realize automation, the operator only needs blank is packed in the cartridge, just can continuously produce, thereby enhance productivity greatly;
2) because the operation that the operator only need feed does not directly contact with hole punched device, reduce the probability of happening of security incident so greatly;
3) in this hole punched device, be provided with stop gauge, and with the cooperating of slide plate, realized the automatic location of feeding and giving up the throne automatically of ejecting, more help realizing automatically working;
4) in this hole punched device, be provided with the side direction stopping means, the blank side direction be pressed on the side of hopper, in other words, blank is pressed on the guide plate automatically, solved the axiality problem of mesopore and cylindrical, satisfied the precision of automatic punching by stopping means;
5) be provided with opening at cartridge in this hole punched device, the operator can be packed into blank in the cartridge more easily, also help observing the placement situation of blank in cartridge, can in time adjust after pinpointing the problems.
Description of drawings
Fig. 1 is the design of part schematic diagram of magnetic conduction sheet among the present invention;
Structural representation when Fig. 2 is the matched moulds of the present invention's hole punched device of being used for the loudspeaker magnetic conduction sheet;
Structural representation when Fig. 3 is the die sinking of the present invention's hole punched device of being used for the loudspeaker magnetic conduction sheet;
Fig. 4 is hole punched device that the present invention is used for the loudspeaker magnetic conduction sheet plan structure schematic diagram when removing patrix;
Fig. 5 is the sectional structure schematic diagram that the present invention is used for the hole punched device stop gauge of loudspeaker magnetic conduction sheet;
Fig. 6 is the plan structure schematic diagram of Fig. 5.
Wherein, 1, magnetic conduction sheet; 2, centre bore; 3, cope match-plate pattern; 4, punch; 5, guide pillar; 6, lower bolster; 7, die; 8, guide plate; 9, base plate; 10, cartridge; 11, delivery sheet; 12, tranverse connecting plate; 13, slide block; 14, first inclined-plane; 15, bearing; 16, riser; 17, slide plate; 18, stop gauge; 180, stepped hole; 181, backgauge nail; 182, backgauge langrage spring; 183, second inclined-plane; 184, push rod chamber; 185, push rod; 186, push rod spring; 187, groove; 188, projection; 189, the 3rd inclined-plane; 19, slide plate cover; 20, back-moving spring; 21, hopper; 22, holding screw; 23, limit spring; 24, spacing rubber; 25, breach.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done explanation in further detail.
By the design of part schematic diagram of loudspeaker magnetic conduction sheet among the present invention shown in Figure 1 as can be known, this magnetic conduction sheet 1 has centre bore 2, and mould of the present invention is to be processed, and what go out is exactly this centre bore 2.
Be used for by Fig. 2～the present invention shown in Figure 6 the loudspeaker magnetic conduction sheet hole punched device structural representation as can be known, it comprises cope match-plate pattern 3, punch 4, die 7, lower bolster 6 and guide pillar 5, described punch 4 is fixed on cope match-plate pattern 3 bottoms, die 7 is fixed on the lower bolster 6, one end of described guide pillar 5 is connected with lower bolster 6, and the other end and cope match-plate pattern 3 are slidingly matched.This mould also comprises pay-off and drive unit, and described pay-off and drive unit all are connected on the lower bolster 6, and described drive unit one end is connected with pay-off, and the other end and cope match-plate pattern 3 are slidingly connected.
Described pay-off comprises base plate 9, guide plate 8, delivery sheet 11 and cartridge 10, and described base plate 9 is fixed on the lower bolster 6, and described guide plate 8 is two and is separately fixed at both sides, front and back on the base plate 9, and two guide plates 8 and base plate 9 form a hopper 21.Described cartridge 10 is installed on two guide plates 8, and is positioned at the end near delivery sheet 11.Described delivery sheet 11 is slidingly fitted in the hopper 21, an end of delivery sheet 11 can stretch into or break away from cartridge 10 under, the other end is connected with drive unit.
Described drive unit comprises tranverse connecting plate 12 and is positioned at two grip assemblies of both sides, base plate 9 front and back, connected by tranverse connecting plate 12 between two grip assemblies.Every grip assembly comprises slide plate 17, slide plate cover 19 and back-moving spring 20, and described slide plate cover 19 is fixed on the lower bolster 6 and is positioned at guide plate 8 outsides, and described slide plate 17 is slidingly fitted in the slide plate cover 19.Described tranverse connecting plate 12 middle parts are connected with delivery sheet 11, and two ends are connected with the slide plate 17 of both sides, front and back respectively.One end of described each back-moving spring 20 is connected with tranverse connecting plate 12 ends, and the other end is connected with slide plate cover 19.
The bottom surface of described cope match-plate pattern 3 is connected with slide block 13, and described slide block 13 has first inclined-plane 14.Described slide plate 13 has riser 16 away from an end of tranverse connecting plate 12, and the top of riser 16 has the device that can roll or slide with first inclined-plane 14.In the present embodiment, riser 16 tops are to roll to cooperate with first inclined-plane 14, and promptly the top arrangement of riser 16 is for being connected with bearing 15 at the top of riser 16, and the outer circumference surface of described bearing 15 rolls with first inclined-plane 14 and cooperates.
Also be provided with stop gauge 18 on the described base plate 9, described stop gauge 18 is positioned at the end of base plate 9 away from tranverse connecting plate 12.
Described stop gauge 18 comprises backgauge nail 181, backgauge langrage spring 182, push rod 185 and push rod spring 186.Described base plate 9 lower planes have can ccontaining push rod 185 push rod chamber 184, described push rod 185 is slidingly fitted in the push rod chamber 184.Have up-small and down-big stepped hole 180 on the base plate 9, and the axis normal of stepped hole 180 is in the last plane of base plate 9.Described backgauge follows closely 181 for to have the pin of major part, and is slidingly fitted in the stepped hole 180.Described backgauge langrage spring 182 1 ends push against at the major part shaft shoulder place of backgauge nail 181, and the other end pushes against the step surface place at stepped hole 180.Described push rod 185 heads have second inclined-plane 183, and the big end surface of backgauge nail 181 is slidingly fitted on second inclined-plane 183.Also have projection 188 on described push rod 185 lower planes, have groove 187 on the described lower bolster 6, described projection 188 is slidingly fitted in the groove 187.Described push rod spring 186 1 ends push against on the end face of groove 187, and the other end pushes against on projection 188.The base plate 9 outer afterbodys that are positioned at of described push rod 185 have the 3rd inclined-plane 189, and the end of described slide plate 17 and the 3rd inclined-plane 189 are slidingly matched.
Also be provided with stopping means on the described guide plate 8, this stopping means comprises spacing rubber 24, limit spring 22 and holding screw 23.Described spacing rubber 24 is embedded on the side of the formation hopper 21 of a guide plate 8 wherein, and spacing rubber 24 is away from being connected with holding screw 23 by limit spring 22 on the side of hopper 21, and described limit spring 24 and holding screw 23 all are positioned at guide plate 8.
At least have a breach 25 on the described cartridge 10, the direction of described breach 25 is the axis direction of cartridge 10.In the present embodiment, the breach 25 on the cartridge 10 is 2, and the width of one of them breach 25 is less, and the width of another breach 25 is bigger.
It is as follows that the present invention is used for the course of action of hole punched device of loudspeaker magnetic conduction sheet:
Filling the blank material in the cartridge 10, be about to blank a slice a slice and be superimposed upon in the cartridge 10 earlier, because cartridge 10 is provided with breach 25, therefore, it is very convenient to feed.At this moment, back-moving spring 20 in the raw, delivery sheet 11 just in time is positioned at the below of cartridge 10, the blanks in the cartridge 10 can not fall in the hopper 21.
Then start punch press, make cope match-plate pattern 3 drive punch 4 and do moving up and down of straight line, when cope match-plate pattern 3 falls, be installed in the also past whereabouts of slide block 13 under the cope match-plate pattern 3, because the rolling cooperation of the bearing 15 that is connected by riser 16 on first inclined-plane 14 and the slide plate 17 on the slide block 13, slide plate 17 is moved right in slide plate cover 19 (this direction is expressed direction in illustrating), drive tranverse connecting plate 12 and delivery sheet 11 and move right simultaneously.At this moment, cartridge 10 belows are neutral gear, just in time make the blank material fall one, and simultaneously, back-moving spring 20 is in tensioning state.
When the actuating unit drive cope match-plate pattern 3 of lathe moves upward, slide block 13 also moves upward simultaneously, because the effect of spring force, back-moving spring 20 resets, driving tranverse connecting plate 12 and delivery sheet 11 is moved to the left, also slide plate 17 is reset to the home position left, delivery sheet 11 is with a blank material jacking left that has just fallen in the cartridge 10 simultaneously.
So repeatedly, until the blank material being covered with whole hopper 21, at this moment, the effect that first blank material is subjected to stop gauge 18 stops, and the effect that is subjected to the side direction stopping means is pressed on the side of hopper 21.This is because cope match-plate pattern 3 is in the state of moving upward, at the effect lower skateboard 17 of back-moving spring 20 during to left movement, cooperating of the 3rd inclined-plane 189 in its end and the stop gauge 18 on the push rod 185, push rod 185 is moved to hopper 21 centers, projection 188 on the push rod 185 is compressive state with push rod spring 186, at this moment, backgauge nail 181 moves up under the effect on second inclined-plane 183 on the push rod 185, last plane until the outstanding base plate 9 in the top of backgauge nail 181, just in time block the blank material, backgauge langrage spring 182 is compressive state.When punch 4 falls again, with the centre bore of going out cooperating of die 7 on the magnetic conduction sheet 12.
When cope match-plate pattern 3 is moved downward, slide plate 17 moves right, push rod 185 in the stop gauge 18 moves right under the spring force effect of push rod spring 186, simultaneously, backgauge nail 181 moves down under the spring force effect of backgauge langrage spring 182, fall into fully in the stepped hole 180, at this moment, first magnetic conduction sheet 1 is in the state of not stressing.When cope match-plate pattern 3 moved upward once more, under the effect of back-moving spring 20, delivery sheet 11 will be ejects hopper 21 towards first magnetic conduction sheet 1 of good centre bore, finishes processing.Simultaneously, carry out the punching operation of second magnetic conduction sheet, so continuously.
The present invention is not limited to the structure described in the above embodiment, and wherein slide block 13 also can be to be slidingly matched with cooperating of riser 16, and in other words, the top of riser 16 has arc surface, and this arc surface and first inclined-plane 14 are slidingly matched.This variation falls within protection scope of the present invention.
Claims (10)
1. hole punched device that is used for the loudspeaker magnetic conduction sheet, comprise cope match-plate pattern (3), punch (4), die (7), lower bolster (6) and guide pillar (5), described punch (4) is fixed on cope match-plate pattern (3) bottom, die (7) is fixed on the lower bolster (6), one end of described guide pillar (5) is connected with lower bolster (6), the other end and cope match-plate pattern (3) are slidingly matched, it is characterized in that: this device also comprises pay-off and drive unit, described pay-off and drive unit all are connected on the lower bolster (6), described drive unit one end is connected with pay-off, and the other end and cope match-plate pattern (3) are slidingly connected.
2. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 1, it is characterized in that: described pay-off comprises base plate (9), guide plate (8), delivery sheet (11) and cartridge (10), described base plate (9) is fixed on the lower bolster (6), described guide plate (8) is two and is separately fixed at both sides, front and back on the base plate (9), two guide plates (8) and base plate (9) form a hopper (21), described cartridge (10) is installed on two guide plates (8), and is positioned at the end near delivery sheet (11); Described delivery sheet (11) is slidingly fitted in the hopper (21), an end of delivery sheet (11) can stretch into or break away from cartridge (10) under, the other end is connected with drive unit.
3. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 2 is characterized in that: described drive unit comprises tranverse connecting plate (12) and is positioned at two grip assemblies of both sides, base plate (9) front and back, connected by tranverse connecting plate (12) between two grip assemblies; Every grip assembly comprises slide plate (17), slide plate cover (19) and back-moving spring (20), and described slide plate cover (19) is fixed on the lower bolster (6) and is positioned at guide plate (8) outside, and described slide plate (17) is slidingly fitted in the slide plate cover (19); Described tranverse connecting plate (12) middle part is connected with delivery sheet (11), and two ends are connected with the slide plate (17) of both sides, front and back respectively; One end of described each back-moving spring (20) is connected with tranverse connecting plate (12) end, and the other end is connected with slide plate cover (19).
4. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 3 is characterized in that: the bottom surface of described cope match-plate pattern (3) is connected with slide block (13), and described slide block (13) has first inclined-plane (14); Described slide plate (13) has riser (16) away from an end of tranverse connecting plate (12), and the top of riser (16) has the device that can roll or slide with first inclined-plane (14).
5. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 4, it is characterized in that: when riser (16) top and first inclined-plane (14) rolling, the top arrangement of riser (16) is for being connected with bearing (15) at the top of riser (16), the outer circumference surface of described bearing (15) rolls with first inclined-plane (14) and cooperates.
6. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 4, it is characterized in that: when riser (16) top and first inclined-plane (14) slip, the top arrangement of riser (16) is that riser (16) top has arc surface, and this arc surface and first inclined-plane (14) are slidingly matched.
7. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 3 is characterized in that: also be provided with stop gauge (18) on the described base plate (9), described stop gauge (18) is positioned at the end of base plate (9) away from tranverse connecting plate (12).
8. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 7, it is characterized in that: described stop gauge (18) comprises backgauge nail (181), backgauge langrage spring (182), push rod (185) and push rod spring (186), described base plate (9) lower plane have can ccontaining push rod (185) push rod chamber (184), described push rod (185) is slidingly fitted in the push rod chamber (184); Have up-small and down-big stepped hole (180) on the base plate (9), and the axis normal of stepped hole (180) is in the last plane of base plate (9); Described backgauge is followed closely (181) for to have the pin of major part, and is slidingly fitted in the stepped hole (180); Described backgauge langrage spring (182) one ends push against at the major part shaft shoulder place of backgauge nail (181), and the other end pushes against the step surface place at stepped hole (180); Described push rod (185) head has second inclined-plane (183), and the big end surface of backgauge nail (181) is slidingly fitted on second inclined-plane (183); Also have projection (188) on described push rod (185) lower plane, have groove (187) on the described lower bolster (6), described projection (188) is slidingly fitted in the groove (187); Described push rod spring (186) one ends push against on the end face of groove (187), and the other end pushes against on projection (188); The outer afterbody of base plate (9) that is positioned at of described push rod (185) has the 3rd inclined-plane (189), and the end of described slide plate (17) and the 3rd inclined-plane (189) are slidingly matched.
9. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 3 is characterized in that: described guide plate also is provided with stopping means on (8), and this stopping means comprises spacing rubber (24), limit spring (22) and holding screw (23); Described spacing rubber (24) is embedded on the side of the formation hopper (21) of a guide plate (8) wherein, spacing rubber (24) is away from being connected with holding screw (23) by limit spring (22) on the side of hopper (21), and described limit spring (24) and holding screw (23) all are positioned at guide plate (8).
10. the hole punched device that is used for the loudspeaker magnetic conduction sheet according to claim 2 is characterized in that: have a breach (25) on the described cartridge (10) at least, the direction of described breach (25) is the axis direction of cartridge (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102571396A CN101961749B (en) | 2010-08-18 | 2010-08-18 | Punching device for loudspeaker magnetic conduction slice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102571396A CN101961749B (en) | 2010-08-18 | 2010-08-18 | Punching device for loudspeaker magnetic conduction slice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101961749A true CN101961749A (en) | 2011-02-02 |
| CN101961749B CN101961749B (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102571396A Active CN101961749B (en) | 2010-08-18 | 2010-08-18 | Punching device for loudspeaker magnetic conduction slice |
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| CN102962370A (en) * | 2012-12-13 | 2013-03-13 | 句容佳泰金属制品有限公司 | Special tool for gasket stamping |
| CN103143607A (en) * | 2012-06-04 | 2013-06-12 | 叶如康 | Punching machine |
| CN105618557A (en) * | 2015-12-28 | 2016-06-01 | 嵊州市意海电机配件厂 | Punching device for manufacturing pipeline pump parts |
| CN109622733A (en) * | 2019-01-25 | 2019-04-16 | 江阴市东泰型钢彩板有限公司 | A kind of accurate punch device of carrier bar |
| CN110405064A (en) * | 2019-06-13 | 2019-11-05 | 贵州振华华联电子有限公司 | A kind of die assembly of accurate automatic feed mechanism |
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| CN105618557A (en) * | 2015-12-28 | 2016-06-01 | 嵊州市意海电机配件厂 | Punching device for manufacturing pipeline pump parts |
| CN109622733A (en) * | 2019-01-25 | 2019-04-16 | 江阴市东泰型钢彩板有限公司 | A kind of accurate punch device of carrier bar |
| CN110405064A (en) * | 2019-06-13 | 2019-11-05 | 贵州振华华联电子有限公司 | A kind of die assembly of accurate automatic feed mechanism |
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| Publication number | Publication date |
|---|---|
| CN101961749B (en) | 2012-02-22 |
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