CN111229931A - Continuous stretch forming die for capacitor shell - Google Patents
Continuous stretch forming die for capacitor shell Download PDFInfo
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- CN111229931A CN111229931A CN202010109680.6A CN202010109680A CN111229931A CN 111229931 A CN111229931 A CN 111229931A CN 202010109680 A CN202010109680 A CN 202010109680A CN 111229931 A CN111229931 A CN 111229931A
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- die
- seat
- sliding
- groove
- sliding seat
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- 239000003990 capacitor Substances 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 238000003825 pressing Methods 0.000 claims abstract description 49
- 230000000694 effects Effects 0.000 claims abstract description 32
- 238000004080 punching Methods 0.000 claims abstract description 16
- 239000011148 porous material Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000005056 compaction Methods 0.000 claims description 2
- 230000000750 progressive effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- 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
- B21D37/08—Dies with different parts for several steps in a process
-
- 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
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to a continuous stretch forming die for a capacitor shell, which relates to the technical field of capacitor shell production dies and comprises a lower die, an upper die arranged above the lower die and a traction assembly arranged between the upper die and the lower die and used for automatically drawing a material belt to advance; the material strip drawing mechanism comprises a drawing assembly and a lower die, wherein an auxiliary piece is further arranged between the upper die and the lower die, the auxiliary piece at least comprises a pre-pressing mechanism used for pre-pressing the material strip on the upper surface of the lower die and at least one material ejecting mechanism used for upwards ejecting the material strip, the drawing assembly comprises a driven mechanism arranged on the lower die and used for driving the material strip to move intermittently and a driving mechanism arranged on the upper die and used for driving the driven mechanism to move, and the drawing assembly further comprises a blanking mechanism used for punching blanking holes matched with the driven mechanism on the material strip. The invention has the effect of reducing the matching cost of the progressive die.
Description
Technical Field
The invention relates to the technical field of capacitor shell production dies, in particular to a continuous stretch forming die for a capacitor shell.
Background
A capacitor (capacitor), as the name implies, is a device that holds an electrical charge. The capacitor is one of electronic elements widely used in electronic equipment, and is widely applied to aspects of blocking AC, coupling, bypassing, filtering, tuning loop, energy conversion, control and the like in a circuit. Capacitors are classified into various types such as aluminum electrolytic capacitors, tantalum electrolytic capacitors, ceramic capacitors, etc., and the capacitor case made of a metal material is generally formed in a long cylindrical shape. In the production, the capacitor shell is mainly stretched by adopting a stretching method, however, if the stretching is completed in one step, the yield is reduced, the production cost is indirectly increased, and if the length-diameter ratio is larger, the successful one-step stretching is difficult technically. If more demanding housing manufacture is required, multiple operations or more elaborate operations are required, increasing costs.
In the prior art, as disclosed in chinese patent No. CN208928999U, the mold for continuous stretch forming of a capacitor case sequentially includes, from top to bottom, an upper die base, an upper die plate, a lower die base, and a fastener and an auxiliary member for connecting each component of the mold, wherein the upper die plate is provided with a plurality of punches, and the outer diameters of the main bodies of the punches gradually decrease from the middle of the upper die plate to the outside, and the punches are sequentially a first-stage punch and a second-stage punch … … N-stage punch; the lower die plate is provided with female dies with the number equal to that of the punches at the positions corresponding to the punches, the inner diameters of the female dies are gradually reduced from the middle part of the lower die plate to the outside, the female dies are a first-stage female die and a second-stage female die … … N-stage female die in sequence, and the inner diameter of each-stage female die is slightly larger than the outer diameter of the punch at the same stage; and the tail end of the N-stage punch head is reduced in diameter to form a contraction table.
Also disclosed in chinese patent No. CN205110529U, the patent includes a 4-6-step drawing die, each step of the drawing die is composed of a male die and a female die, and is characterized in that: the female die of the drawing die in the first step and the female die of the drawing die in the second step are integrated female dies, the integrated female dies are of rectangular structures, chamfers are arranged at corners, and the parts, below 2mm, of the tops of inner holes of the female dies of the drawing die in each step are all conical structures.
Also disclosed in chinese patent No. CN101320633B is a drawing process and a drawing die for an aluminum case of a capacitor. The multi-station strip continuous drawing process for the aluminum shell of the electrolytic capacitor comprises the following steps: 1) determining the width of the belt material according to the stock layout; 2) punching a contour cut on a strip material; 3) punching an aluminum shell on the strip material in the middle of each contour cut; 4) the aluminum shell was separated from the strip. The multi-station strip continuous drawing die for the aluminum shell of the electrolytic capacitor comprises a male die of an upper die base and a female die of a lower die base, wherein the male dies are arranged in a continuous row, and female die holes correspond to one another one by one; the drawing die is provided with 3-20 rows of convex dies, and the front edge of each row of convex dies is respectively provided with a notching die.
Also disclosed in chinese patent publication CN202725805U is an electrolytic capacitor aluminum case drawing die with a notch structure. The anti-explosion punch comprises a male die fixed on an upper die base and a female die fixed on a lower die base, wherein the male die is arranged into a row of continuous male dies by 2-7 deep drawing male dies, an anti-explosion groove male die, a shaping male die and a cutting male die, and the female die is provided with a row of female die holes which are suitable for the male dies and correspond to the male dies one by one from top to bottom; the aluminum shell strip material drawing device is characterized in that the front end of the drawing die is also provided with a notching die, the notching die comprises a process knife and a knife edge concave die which are respectively positioned on an upper die base and a lower die base and are matched with each other, and the knife edge of the process knife is aligned to the position between every two adjacent punching areas on the aluminum shell strip material.
In the prior art, as described above, a capacitor shell is generally formed by stamping through a progressive die, a plurality of female dies with sequentially increasing inner diameters and depths are arranged on a lower die, and then a plurality of punches respectively matched with the female dies are arranged on an upper die to achieve the effect of sequentially performing multiple stamping forming on the same part of a material belt, so that the effect of stamping forming the capacitor shell is achieved; it should be noted that, auxiliary members are further provided on the upper die and the lower die, and the auxiliary members generally include a guide mechanism for ensuring that the upper die is lifted vertically, a pre-pressing mechanism for pre-pressing the material strip onto the lower die, and an ejection mechanism for ejecting the material strip out of the female die.
The above prior art solutions have the following drawbacks: when the material belt is processed by using the progressive die, the material belt needs to move intermittently to realize sequential conversion of the same part among all punches, and the movement of the material belt generally needs to be dragged by a winding device arranged outside the progressive die, so that the matching cost of the progressive die is increased, and improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a continuous stretch forming die for a capacitor shell, which reduces the matching cost of a continuous die.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a continuous stretch-forming die for electric capacity casing, includes mould and lower mould, set gradually a plurality of ways die along its length direction on the lower mould, be provided with a plurality of ways respectively with each drift of way die looks adaptation on going up the mould, upward be provided with on the mould and be used for taking the material to pre-compaction mechanism on the lower mould, be provided with on the lower mould and be used for taking the ejecting ejection mechanism outside the die in stamping forming's position, still include:
the blanking mechanism comprises blanking holes with two ends symmetrically arranged on the left side and the right side of the lower die and two blanking heads which are arranged on the upper die and have the shapes and the positions respectively corresponding to the blanking holes, and the blanking mechanism is used for blanking the blanking holes which are distributed at equal intervals along the length direction of the material strip on the left side and the right side of the material strip;
the driven mechanism comprises two sliding seats which are respectively arranged on the left side and the right side of the lower die, and a plurality of guide pins which are uniformly distributed on the left side and the right side of the two sliding seats, stepped holes are formed in the two sliding seats, the guide pins are respectively clamped in the stepped holes, and first springs with upper ends respectively abutted to the lower ends of the guide pins are arranged in the stepped holes;
the driving mechanism comprises two pressing rods which are arranged on the upper die and are vertically and downwards arranged and two second springs which are arranged at the head end of the lower die, wherein one ends of the two second springs are respectively abutted to the two sliding seats;
when the pre-pressing mechanism presses and fixes the material belt on the lower die, the lower ends of the pressure rods are abutted to the wedge-shaped guide surface, at the moment, the upper die continues to move downwards to achieve the effect that the driving pressure rods push the sliding seat to move, wherein the displacement distance of the sliding seat is the same as the distance between two adjacent punched holes which are arranged along the length direction of the material belt.
By adopting the technical scheme, when needing to be processed, firstly, the material belt is placed on the lower die, then the upper die and the lower die are driven by the press machine to be closed, when the upper die moves downwards, the head end of the material belt is firstly pressed on the lower die by the pre-pressing mechanism, then the upper die continuously moves downwards, so that each punching head can be respectively matched with each punching hole to achieve the effect of punching the punching hole at the head end of the material belt, then the upper die is controlled to reset, at the moment, the material belt is manually moved, each punching hole positioned at the head end of the material belt is respectively matched with each guide pin, at the moment, when the upper die and the lower die are closed again, each punch and female die can start to stretch the material belt, and in the process, when the pre-pressing mechanism presses the material belt, the pre-pressing mechanism can push the guide pins into the stepped holes, so that each guide pin can release the clamping limit of the material belt, at the moment, the upper die continues to move downwards, so that the punch starts to stretch the material belt, meanwhile, the sliding seat can drive the guide pins to move towards the head end of the lower die through the matching between the pressing rod and the wedge-shaped guide surface, each guide pin corresponds to each subsequent blanking hole when the sliding seat moves to the position closest to the head end of the lower die, each positioning pin can directly penetrate into each corresponding blanking hole under the acting force of each first spring when the upper die drives the pre-pressing mechanism to reset, each sliding seat can drive each guide pin to move towards the direction close to the tail end of the lower die respectively under the left and right of the second spring when the upper die continues to move upwards, and each guide pin can drive the material belt to move when moving horizontally, so that the effect of driving the material belt to automatically move among each female die is achieved.
The present invention in a preferred example may be further configured to: the lower surface of the pre-pressing mechanism is also provided with a plurality of abutting bulges, and when the upper ends of the guide pins completely extend out of the sliding seat, the abutting bulges are respectively arranged at the same positions as the guide pins.
Through adopting above-mentioned technical scheme, through each way butt arch can be respectively with each leading the upper end of positive pole outside ejecting blanking hole completely, avoid the seat that slides to drive and lead the positive pole and take place to interfere with the material area when moving towards lower mould head end direction.
The present invention in a preferred example may be further configured to: two all be provided with the activity groove that sets up along the seat length direction that slides on the seat that slides, the degree of depth in activity groove is not less than the bellied thickness of butt.
Through adopting above-mentioned technical scheme, when the butt arch is greater than material thickness and lead to the bellied lower extreme of butt to stretch out the outband, can avoid the butt arch to stretch into in the shoulder hole through the movable groove, can play and avoid the butt arch to take place the effect of interfering with the seat that slides.
The present invention in a preferred example may be further configured to: the lower surface of the pre-pressing mechanism is provided with a plurality of jacks, and when the first spring is compressed, the jacks are respectively arranged at the same positions as the guide pins.
Through adopting above-mentioned technical scheme, when the seat that slides removed the position department that is closest to the lower mould head end, lead the round pin and can wear to establish blanking hole and peg graft in the jack when the effect of first spring is down rebound to make lead the round pin and can take stable connection with the material.
The present invention in a preferred example may be further configured to: each the shoulder hole all includes the screw hole of lower extreme and the holding hole intercommunication of sliding seat lower surface intercommunication, lower extreme and holding hole intercommunication and both ends from top to bottom respectively with screw hole and the intercommunicating pore of sliding seat upper surface intercommunication, the internal diameter of holding hole, screw hole and intercommunicating pore reduces in proper order, lead the lower extreme card of positive round pin and locate in the screw hole, be provided with bolt body and nut respectively with screw hole and holding hole complex hexagon socket head cap screw in the shoulder hole.
Through adopting above-mentioned technical scheme, can supply to lead the lower extreme card of positive round pin to locate the seat that slides through the cooperation between intercommunicating pore and the screw hole, can play the effect that prevents that first spring accident from falling through the cooperation between bolt and intercommunicating pore and the screw hole for the installation of first spring is more convenient.
The present invention in a preferred example may be further configured to: the lower mould includes the lower bolster and sets up the lower bolster on the lower bolster, be provided with twice groove of sliding on the lower bolster, two the groove of sliding communicates with the upper and lower surface and the terminal surface of lower bolster, two the seat of sliding slides respectively and connects in twice inslot that slides, two the end of the seat of sliding all stretches out outside the groove of sliding.
Through adopting above-mentioned technical scheme, can form the lower mould through the cooperation of die holder and lower bolster, can play the effect of restriction seat sliding direction through setting up the groove of sliding on the lower bolster, avoid the seat that slides to take place the incline when sliding.
The present invention in a preferred example may be further configured to: the head end of lower mould is provided with twice spliced eye, two the spliced eye communicates with the head end in twice groove of sliding respectively, two the head end of the seat of sliding all is provided with the inserted bar of wearing to establish twice spliced eye respectively, two the second spring overlaps respectively and locates on two inserted bars.
Through adopting above-mentioned technical scheme, can play the effect that supports the second spring through the inserted bar, through the grafting cooperation between spliced eye and the inserted bar for when the seat that slides keeps away from the lower mould head end, can also be stably connected between the inner wall in inserted bar and the groove that slides, thereby play the effect that prevents the unexpected break away from of second spring.
The present invention in a preferred example may be further configured to: two all be provided with the direction arch that sets up along sliding groove length direction on the left and right sides face in sliding groove, two all be provided with along sliding seat length direction setting and respectively with each protruding complex spacing groove of direction on the left and right sides of sliding seat.
Through adopting above-mentioned technical scheme, can play the effect that prevents the seat perk that upwards slides through the cooperation between protruding and the spacing groove of direction, and can increase the seat of sliding and the effect of being connected stability between the seat of sliding through the cooperation between protruding and the spacing groove of direction.
The present invention in a preferred example may be further configured to: and a notch with the length larger than the total length of the sliding seat is reserved between each guide protrusion and the end face of the tail end of the sliding groove.
Through adopting above-mentioned technical scheme, the staff of being convenient for through the breach will slide the seat and install into the inslot that slides, and make the seat that slides can not take place to interfere with the direction arch.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the upper die and the lower die are separated, the guide pins arranged on the lower die can automatically drive the material belt to move, and an external winding device is not needed to pull the material belt, so that the cost is effectively reduced;
2. the guide pin can play a role in positioning, so that the stretching deformation position is accurate, and the product quality is effectively improved;
3. the structure is simple, the device mainly comprises a spring pin structure and a wedge-shaped guide block structure, is convenient to implement, and can be improved and used on the original progressive die;
4. the sliding seat for driving the guide pin to move can achieve the effect of adjusting the displacement by replacing different positioning blocks, so that the continuous die is suitable for continuous dies with different specifications;
5. the first section of the material belt can be directly utilized, and the first section of the material belt needs to be pulled out of the continuous die by adopting the winding device, so that the effect of reducing waste can be achieved;
6. when the punching die is used preliminarily, a worker only needs to manually control the press machine to punch the blanking hole in the first section of the material belt and clamp the blanking hole finished by blanking with the guide pin, and the movement of the subsequent material belt only needs to control the press machine to automatically close and separate the die, so that the punching die is simple to operate.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;
FIG. 4 is an enlarged partial schematic view of portion B of FIG. 2;
FIG. 5 is a schematic structural view of the traction assembly of the present embodiment;
FIG. 6 is a schematic sectional view taken along line B-B in FIG. 5;
FIG. 7 is an enlarged partial schematic view of portion C of FIG. 6;
FIG. 8 is a schematic cross-sectional view taken along line C-C of FIG. 5;
fig. 9 is a schematic view of the installation of the pilot pin of the present embodiment.
Reference numerals: 1. a lower die; 11. a lower die holder; 12. a lower template; 121. a female die; 122. a sliding groove; 123. a guide projection; 124. inserting holes; 2. an upper die; 21. an upper die holder; 22. mounting a template; 221. a punch; 3. a traction assembly; 31. a driven mechanism; 311. a sliding seat; 3111. a stepped hole; 3112. a housing hole; 3113. a threaded hole; 3114. a communicating hole; 3115. a wedge-shaped guide surface; 312. a pilot pin; 3121. a third snap projection; 313. a first spring; 314. a movable groove; 315. a limiting groove; 316. inserting a rod; 317. a hexagon socket head cap screw; 32. an active mechanism; 321. a pressure lever; 322. a second spring; 33. a blanking mechanism; 331. punching holes; 332. punching a head; 4. an auxiliary member; 41. a pre-compression mechanism; 411. pressing a plate; 412. a through hole; 413. a fourth spring; 414. an equal-height sleeve assembly; 415. a connecting bolt; 416. an equal-height sleeve; 417. a second clamping protrusion; 418. an abutment projection; 419. a jack; 42. a material ejecting mechanism; 421. a third spring; 422. a dowel bar; 423. a first clamping protrusion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a continuous stretch forming die for a capacitor case disclosed by the present invention includes a lower die 1, an upper die 2 disposed above the lower die 1, and a traction assembly 3 disposed between the upper die 2 and the lower die 1 for automatically drawing a material strip to advance; an auxiliary part 4 is further arranged between the upper die 2 and the lower die 1, and the auxiliary part 4 at least comprises a pre-pressing mechanism 41 for pre-pressing the material belt on the upper surface of the lower die 1 and at least one ejection mechanism 42 for ejecting the material belt upwards.
Referring to fig. 2 and 3, the lower mold 1 includes a lower mold base 11 and a lower mold plate 12 disposed above the lower mold base 11, and the lower mold plate 12 is provided with a plurality of female molds 121 sequentially arranged along a length direction of the lower mold plate 12; wherein, each liftout mechanism 42 is respectively arranged in part of the female die 121.
The ejecting mechanism 42 comprises a third spring 421 vertically arranged in the lower die holder 11 and a dowel bar 422 arranged in the lower die plate 12, a first clamping protrusion 423 clamped with the lower surface of the lower die plate 12 is arranged at the lower end of the dowel bar 422, and the upper end of the dowel bar 422 extends into the female die 121; when the third spring 421 is fully expanded, the level of the upper end surface of each force transfer rod 422 is not lower than the level of the upper surface of the lower template 12.
When the upper die 2 moves upwards to press the material belt in a contact manner, each third spring 421 starts to reset, so that the effect of jacking each dowel bar 422 upwards is achieved, the effect of ejecting the tensile deformation part of the material belt out of the female die 121 can be achieved when each dowel bar 422 moves upwards, and the traction assembly 3 is enabled not to interfere with the female die 121 when driving the material belt to move.
Referring to fig. 2 and 4, the upper die 2 includes an upper die base 21 and an upper die plate 22 disposed below the upper die base 21, and the upper die plate 22 is provided with a plurality of punches 221 which are arranged along the length direction of the upper die plate 22 and respectively matched with each of the female dies 121; wherein the pre-compression mechanism 41 is arranged below the lower template 12.
Wherein, the pre-pressing mechanism 41 comprises a pressing plate 411 arranged below the lower template 12, a plurality of through holes 412 corresponding to the shape positions of the punches 221 are arranged on the pressing plate 411 respectively, a plurality of fourth springs 413 are arranged in the upper die holder 21, one end of each fourth spring 413, which extends out of the upper die holder 21, penetrates through the upper die plate 22 and is abutted against the upper surface of the pressing plate 411, a plurality of groups of equal-height sleeve assemblies 414 are arranged between the upper die holder 21 and the pressing plate 411, each group of equal-height sleeve assemblies 414 respectively comprise a connecting bolt 415 which is in threaded connection with the pressing plate 411 and an equal-height sleeve 416 which is sleeved on the outer wall of the connecting bolt 415, a nut of the connecting bolt 415 penetrates through the upper die holder 21 and is clamped with the upper end surface of the equal-height sleeve 416, the equal-height sleeve 416 penetrates through the upper die holder 21 and the upper die plate 22, and a circle of second clamping protrusions 417 which is clamped with the upper; when the fourth spring 413 is fully expanded, the lower end surface of each punch 221 has a higher level than the lower surface of the pressing plate 411.
When the upper die 2 is reset upwards, the pressing plate 411 can still be kept still by the fourth spring 413, so that when the upper die plate 22 moves upwards along with the upper die base 21, the pressing plate 411 can still press the material belt on the lower die 1, the punch 221 is withdrawn out of the material belt stretching area, and after the fourth spring 413 is completely reset, the pressing plate 411 can move upwards along with the upper die base 21, so that the problem that the part of the material belt which is stretched and deformed cannot be driven to rise by the punch 221 is solved.
Referring to fig. 5 and 6, the drawing assembly 3 includes a driven mechanism 31 disposed on the lower die 1 for driving the material strip to move intermittently, and a driving mechanism 32 disposed on the upper die 2 for driving the driven mechanism 31 to move, wherein the drawing assembly 3 further includes a blanking mechanism 33 for punching a blanking hole 331 matched with the driven mechanism 31 on the material strip.
Referring to fig. 5 and 7, the blanking mechanism 33 includes two blanking holes 331 symmetrically disposed on the left and right sides of the lower die 1, and two blanking heads 332 disposed on the lower surface of the upper die plate 22 and having shapes and positions corresponding to the respective blanking holes 331, wherein the lower end of each blanking head 332 can be penetrated through the pressing plate 411, and when the fourth spring 413 is fully expanded, the horizontal height of the lower end surface of each blanking head 332 is higher than the horizontal height of the lower surface of the pressing plate 411.
When blanking hole 331 is blanked out in the material area to needs, only need control to go up mould 2 and move down, when last mould 2 moves down, clamp plate 411 at first can compress tightly the material area on the upper surface of lower mould 1, and along with going on going down of last mould 2, the lower extreme of punching and cutting sword begins to wear out clamp plate 411 and outer and insert and connect in blanking hole 331 to reach the effect that produces the shearing force to the material area.
Referring to fig. 8 and 9, the follower 31 includes two sliding seats 311 slidably connected in the lower die holder 11 and arranged along the length direction of the lower die 1 in the sliding direction, and a plurality of guide pins 312 vertically arranged and having the same outer diameter as the inner diameter of the blanking holes 331.
As shown in fig. 9, the guiding pins 312 are uniformly distributed on the two sliding seats 311, the lower end of each guiding pin 312 is inserted into the sliding seat 311, the two sliding seats 311 are each provided with a first spring 313, the upper end of each guiding pin 312 abuts against the lower end of the guiding pin 312 to drive the guiding pin 312 to move upward, and the maximum length of the portion of each guiding pin 312 that can extend out of the sliding seat 311 is greater than the sum of the depth of the capacitor case and the height of the force transmission rod 422 that extends out of the upper surface of the lower template 12.
Wherein, each sliding seat 311 is provided with a stepped hole 3111, each stepped hole 3111 comprises a containing hole 3112 with a lower end communicated with the lower surface of the sliding seat 311, a threaded hole 3113 with a lower end communicated with the containing hole 3112, and a communicating hole 3114 with an upper end and a lower end respectively communicated with the threaded hole 3113 and the upper surface of the sliding seat 311, the containing hole 3112, the threaded hole 3113 and the communicating hole 3114 are coaxially arranged, and the inner diameters thereof are sequentially reduced; the lower end of the pilot pin 312 is inserted into the threaded hole 3113, the lower end of the pilot pin 312 is provided with a third engaging protrusion 3121 having an outer diameter larger than the inner diameter of the communicating hole 3114, the first spring 313 is installed in the threaded hole 3113, the upper end of the first spring abuts against the pilot pin 312, the lower end of the stepped hole 3111 is provided with a socket head cap 317 having a cap and a bolt body which are respectively engaged with the threaded hole 3113 and the receiving hole 3112, and the lower end of the first spring 313 abuts against the socket head cap 317.
As shown in fig. 8 and 9, a plurality of abutting protrusions 418 are disposed on the lower surface of the pressing plate 411, and the two sliding seats 311 are both provided with a movable groove 314 disposed along the length direction of the sliding seat 311 and having a depth not less than the thickness of the abutting protrusions 418, when the first spring 313 is unfolded and the upper end of each guide pin 312 completely extends out of the sliding seat 311, the abutting protrusions 418 are disposed at the same positions as the guide pins 312, respectively; wherein, be provided with a plurality of jacks 419 on the lower surface of clamp plate 411, when the seat 311 that slides moves to the position department that is close to lower mould 1 head end, each jack 419 respectively with each lead positive round pin 312 position the same setting, arrange along last mould 2 length direction and adjacent jack 419 that sets up and the interval between the butt arch 418 with arrange along material area length direction and the interval between the two blanking holes 331 of arbitrary adjacent setting the same setting.
When the first spring 313 is normally expanded, the upper ends of the guiding pins 312 are respectively clamped in the corresponding blanking holes 331 of the respective positions to achieve the positioning effect, at this time, the upper die 2 starts to move down, during the moving down of the upper die 2, the abutting protrusions 418 respectively abut against the upper ends of the guiding pins 312, and along with the moving down of the upper die 2, the abutting protrusions 418 penetrate through the corresponding blanking holes 331 of the respective positions, and the pressing plate 411 starts to abut against the upper surface of the material tape, at this time, along with the moving down of the upper die 2, the pressing plate 411 drives the material tape to move down (during this process, the force transmission rod 422 starts to move down) until the material tape is completely attached to the lower die 1, and simultaneously, the guiding pins 312 are completely retracted into the sliding seat 311, thereby achieving the effect of releasing the clamping relationship between the guiding pins 312 and the material tape, so that the driving mechanism 32 can drive the sliding seat 311 to move towards the head end of the lower die 1, therefore, each guiding pin 312 can be respectively communicated with each jack 419, and at the moment, under the resetting capability of the first spring 313, each guiding pin 312 can penetrate through the material belt and be respectively inserted into each jack 419; when the clamp plate 411 upwards resets, each guide pin 312 can continue to rise under the reset capability of the first spring 313, and each liftout mechanism 42 can cooperate with each other to reach the effect of jacking the material belt upwards, when the guide pin 312 rises to the highest position, the clamp plate 411 continues to rise, at this moment, the upper end of the guide pin 312 begins to separate from the clamp plate 411, so that the sliding seat 311 can drive the guide pin 312 to move towards the direction away from the head end of the lower die 1, the guide pin 312 can drive the material belt to move when moving, and the effect of intermittently drawing the automatic movement of the material belt is achieved.
As shown in fig. 7 and 8, the active mechanism 32 includes two pressing rods 321 disposed on the lower surface of the lower template 12 and having lower ends capable of passing through the pressing plate 411 for driving the sliding seat 311 to face, and a second spring 322 disposed in the lower template 12; wherein, the left and right sides of the lower mold plate 12 are both provided with sliding grooves 122 with the length extending along the length direction of the lower mold 1, and the two sliding seats 311 are respectively connected in the two sliding grooves 122 in a sliding manner.
Referring to fig. 7 and 8, the end of each sliding seat 311 is provided with a wedge-shaped guide surface 3115, two pressing rods 321 are respectively located outside two sides of the material belt, and each guide pin 312 is located in the coverage area of the material belt; when the pressing plate 411 presses the material belt to be fixed on the lower die 1, the lower end of each pressing rod 321 starts to abut against the wedge-shaped guide surface 3115, at this time, the upper die 2 continues to move downwards to achieve the effect that the driving pressing rod 321 pushes the sliding seat 311 to move, when the lower end of the pressing rod 321 abuts against the end surface of the sliding seat 311, the sliding seat 311 is located at the position closest to the head end of the lower die 1, and at this time, when the upper die 2 continues to move downwards, the sliding seat 311 cannot move.
As shown in fig. 7, two insertion holes 124 are formed at the head end of the lower die 1, the axes of the two insertion holes 124 are arranged along the length direction of the lower die 1 and are respectively communicated with the head ends of the two sliding grooves 122, the head ends of the two sliding seats 311 are respectively provided with two insertion rods 316 penetrating through the two insertion holes 124, and the two second springs 322 are respectively sleeved on the two insertion rods 316; when the pressing plate 411 and the pressing rod 321 both release the position limitation on the sliding seat 311, under the action of the resetting capability of the second spring 322, the two sliding seats 311 can move towards the direction far away from the head end of the lower die 1, so that the effect of driving the material belt to move is achieved.
The implementation principle of the embodiment is as follows:
when processing is needed, firstly, the material belt is placed on the lower die 1, then the upper die 2 and the lower die 1 are driven to be matched through a press machine, when the upper die 2 moves downwards, the head end of the material belt is firstly pressed on the lower die 1 by the pressure plate 411, then the upper die 2 moves downwards continuously, so that each blanking head 332 can be matched with each blanking hole 331 respectively to achieve the effect of blanking the blanking hole 331 at the head end of the material belt, then the upper die 2 is controlled to reset, at the moment, the material belt is moved manually, each blanking hole 331 positioned at the head end of the material belt is matched with each guide pin 312 respectively, at the moment, when the upper die 2 and the lower die 1 are matched again, each punch 221 and the female die 121 start to stretch the material belt, and in the process, when the pressure plate 411 presses the material belt, the pressure plate 411 can push the guide pin 312 into the stepped hole 3111, so that each guide pin 312 releases the clamping limit effect on the material belt, at this point, the upper die 2 continues to move downward, so that the punch 221 starts to stretch the strip, and at the same time, the sliding seat 311 can drive the pilot pin 312 to move towards the head end of the lower die 1 through the cooperation between the pressing rod 321 and the wedge-shaped guide surface 3115, and when the sliding seat 311 moves to the position closest to the head end of the lower die 1, each guide pin 312 corresponds to the position of each subsequent punched hole 331, when the upper die 2 drives the pressing plate 411 to reset, each positioning pin will directly penetrate into each corresponding blanking hole 331 under the action of each first spring 313, and when the upper die 2 continues to move upwards, under the left and right of the second spring 322, each sliding seat 311 will drive each guiding pin 312 to move toward the direction close to the end of the lower mold 1, and when each guiding pin 312 moves horizontally, the material belt is driven to move, so that the effect of driving the material belt to automatically move among the concave dies 121 is achieved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a continuous stretch forming mould for electric capacity casing, includes mould (2) and lower mould (1), a plurality of die (121) have set gradually along its length direction on lower mould (1), be provided with a plurality of drifts (221) of respectively with each way die (121) looks adaptation on last mould (2), be provided with on last mould (2) and be used for pre-compaction mechanism (41) on lower mould (1) with the material area, be provided with on lower mould (1) and be used for taking the outer liftout mechanism (42) of the ejecting die (121) in position stamping forming, its characterized in that still includes:
the blanking mechanism (33) comprises blanking holes (331) with two ends symmetrically arranged on the left side and the right side of the lower die (1) and two blanking heads (332) which are arranged on the upper die (2) and have shapes and positions respectively corresponding to the blanking holes (331), and the blanking mechanism (33) is used for punching the blanking holes (331) which are distributed at equal intervals along the length direction of the material strip on the left side and the right side of the material strip;
the driven mechanism (31) comprises two sliding seats (311) which are respectively arranged on the left side and the right side of the lower die (1) and a plurality of guide pins (312) which are uniformly distributed on the left side and the right side of the two sliding seats (311), stepped holes (3111) are formed in the two sliding seats (311), each guide pin (312) is clamped in each stepped hole (3111), and a first spring (313) with the upper end abutted to the lower end of each guide pin (312) is arranged in each stepped hole (3111);
the driving mechanism (32) comprises two pressing rods (321) which are arranged on the upper die (2) and are vertically and downwards arranged and two second springs (322) which are arranged at the head end of the lower die (1) and one ends of which are respectively abutted to the two sliding seats (311), the tail ends of the two sliding seats (311) are respectively provided with a wedge-shaped guide surface (3115), the two pressing rods (321) are respectively matched with the two wedge-shaped guide surfaces (3115) when moving downwards, and the two second springs (322) are arranged along the length direction of the sliding seat (311) and one ends of the two second springs (322) far away from the sliding seat (311) are connected with the lower die (1);
when the pre-pressing mechanism (41) presses and fixes the material belt on the lower die (1), the lower ends of the pressing rods (321) are abutted to the wedge-shaped guide surface (3115), at the moment, the upper die (2) continues to move downwards to achieve the effect that the driving pressing rods (321) push the sliding seat (311) to move, wherein the displacement distance of the sliding seat (311) is the same as the distance between two adjacent blanking holes (331) which are arranged along the length direction of the material belt.
2. A continuous stretch forming die for capacitor cases according to claim 1, wherein: the lower surface of the pre-pressing mechanism (41) is also provided with a plurality of abutting protrusions (418), and when the first spring (313) is unfolded and the upper end of each guide pin (312) completely extends out of the sliding seat (311), the abutting protrusions (418) are respectively arranged at the same positions as the guide pins (312).
3. A continuous stretch forming die for capacitor cases according to claim 2, wherein: two all be provided with movable groove (314) that set up along sliding seat (311) length direction on sliding seat (311), the degree of depth of movable groove (314) is not less than the thickness of butt arch (418).
4. A continuous stretch forming die for capacitor cases according to claim 1, wherein: the lower surface of the pre-pressing mechanism (41) is provided with a plurality of jacks (419), and when the sliding seat (311) moves to a position close to the head end of the lower die (1), the jacks (419) are respectively arranged at the same positions as the guide pins (312).
5. A continuous stretch forming die for capacitor cases according to claim 1, wherein: each shoulder hole (3111) all include lower extreme and the holding hole (3112) that slide seat (311) lower surface communicates, screw hole (3113) and upper and lower both ends respectively with screw hole (3113) and the intercommunicating pore (3114) that slides seat (311) upper surface communicate of lower extreme and holding hole (3112) intercommunication, the internal diameter of holding hole (3112), screw hole (3113) and intercommunicating pore (3114) reduces in proper order, lead the lower extreme card of positive pin (312) and locate in screw hole (3113), be provided with bolt body and nut respectively with screw hole (3113) and holding hole (3112) complex hexagon socket head cap screw (317) in shoulder hole (3111).
6. A continuous stretch forming die for capacitor cases according to claim 1, wherein: lower mould (1) includes lower bolster (11) and sets up lower bolster (12) on lower bolster (11), be provided with twice groove (122) that slides on lower bolster (12), two slide groove (122) and the upper and lower surface and the terminal surface intercommunication of lower bolster (12), two slide seat (311) and slide respectively and connect in twice groove (122) that slides, two slide seat (311) the end all stretch out outside groove (122) that slides.
7. A continuous stretch forming die for capacitor cases according to claim 6, wherein: the head end of lower mould (1) is provided with twice spliced eye (124), two spliced eye (124) communicate with the head end of twice groove (122) that slides respectively, two the head end of seat (311) that slides all is provided with inserted bar (316) of wearing to establish twice spliced eye (124) respectively, two second spring (322) overlap respectively and locate on two inserted bar (316).
8. A continuous stretch forming die for capacitor cases according to claim 6, wherein: two all be provided with on the left and right sides face in groove (122) that slides along groove (122) length direction sets up guide protrusion (123), two all be provided with on the left and right sides of seat (311) that slides along seat (311) length direction sets up and respectively with each guide protrusion (123) complex spacing groove (315).
9. A continuous stretch forming die for capacitor cases according to claim 8, wherein: a gap with the length larger than the total length of the sliding seat (311) is reserved between each guide protrusion (123) and the end face of the tail end of the sliding groove (122).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010109680.6A CN111229931B (en) | 2020-02-22 | 2020-02-22 | Continuous stretch forming die for capacitor shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010109680.6A CN111229931B (en) | 2020-02-22 | 2020-02-22 | Continuous stretch forming die for capacitor shell |
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| CN111229931A true CN111229931A (en) | 2020-06-05 |
| CN111229931B CN111229931B (en) | 2021-07-09 |
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| JP4828498B2 (en) * | 2007-10-02 | 2011-11-30 | トヨタ紡織株式会社 | Lubricating oil evaluation method and die for lubricating oil evaluation |
| CN202803917U (en) * | 2012-06-13 | 2013-03-20 | 东莞市硕诚电子有限公司 | Material belt type terminal automatic feeding continuous stamping die and corresponding stamping equipment |
| CN204953681U (en) * | 2015-09-10 | 2016-01-13 | 浙江中安金属件制造有限公司 | Take continuous feeding mechanism's press die |
| CN205463970U (en) * | 2016-03-21 | 2016-08-17 | 上海天轼精密模具有限公司 | Automatic material device that draws in modulus of continuity mould |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451499A (en) * | 2002-04-17 | 2003-10-29 | 鸿富锦精密工业（深圳）有限公司 | Electrically controlled continuous die |
| JP4828498B2 (en) * | 2007-10-02 | 2011-11-30 | トヨタ紡織株式会社 | Lubricating oil evaluation method and die for lubricating oil evaluation |
| CN101320633A (en) * | 2008-06-13 | 2008-12-10 | 詹有耕 | Polarized capacitor aluminum case multi-station belt material continuous deep-drawing technique and continuous tandem die |
| CN201231285Y (en) * | 2008-07-04 | 2009-05-06 | 比亚迪股份有限公司 | Continuous module with automatic feeding mechanism |
| CN202803917U (en) * | 2012-06-13 | 2013-03-20 | 东莞市硕诚电子有限公司 | Material belt type terminal automatic feeding continuous stamping die and corresponding stamping equipment |
| CN204953681U (en) * | 2015-09-10 | 2016-01-13 | 浙江中安金属件制造有限公司 | Take continuous feeding mechanism's press die |
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| CN111229931B (en) | 2021-07-09 |
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