CN207043152U - A kind of continuous stamping die of earphone contact pin middle pipe - Google Patents
A kind of continuous stamping die of earphone contact pin middle pipe Download PDFInfo
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- CN207043152U CN207043152U CN201720945955.3U CN201720945955U CN207043152U CN 207043152 U CN207043152 U CN 207043152U CN 201720945955 U CN201720945955 U CN 201720945955U CN 207043152 U CN207043152 U CN 207043152U
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- die
- cavity plate
- punch
- pin
- stretching
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Abstract
The utility model discloses a kind of continuous stamping die of earphone contact pin middle pipe, including the upper mould worked in coordination and lower mould, continuous punch forming is carried out to middle pipe using continuous stamping die, multiple working procedure is integrated in upper and lower mould, realized per procedure by the punch-pin and cavity plate that match, can effectively ensure that precision of the product in every procedure, at the same using continuous stamping die can it is continuously shaped go out product, production efficiency is substantially improved, reduces equipment cost.
Description
Technical field
A kind of continuous stamping die is the utility model is related to, more particularly to a kind of continuous stamping die of earphone contact pin middle pipe
Tool.
Background technology
Mobile phone in the market, MP3, MP4 or palm PC etc, are designed with audio or video jack, for pair
Connect audio or video earphone contact pin.Existing earphone contact pin such as Fig. 1 show 3.5mm level Four contact pins, including PIN levels 1, second
Level middle pipe 2, third level middle pipe 3 and the big set 4 of the fourth stage, level Four metalwork carry out injection molding, adjacent two-stage after organizing set successively
Between be separated by insulation division 5 avoid adjacent two-stage contact with each other after occur short circuit.Wherein second level middle pipe 2 and the third level
Intergrade of the middle pipe 3 as earphone contact pin, due to profile in a tubular form therefore referred to as middle pipe, existing middle pipe processing typically uses car
Type is whittled into, but turning process has the problem of processing efficiency is low, equipment investment cost is big.
Utility model content
The purpose of this utility model is to provide a kind of continuous stamping die of earphone contact pin middle pipe, for improving processing effect
Rate, reduce equipment cost.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of continuous stamping die of earphone contact pin middle pipe, including upper mould and lower mould, the upper mould are included from top to bottom
Upper bolster, upper padding plate and the punch retainer being sequentially connected, the lower mould include be sequentially connected from the bottom to top die shoe, under
Backing plate, die block and stripper plate；Multiple punch-pin are provided with wherein described punch retainer, multiple punch-pin are in sequence
Arrangement be followed successively by several stretching convex dies, piercing punch, first time shaping terrace die, expand uropore punch-pin, widen end punch-pin, second
Shaping terrace die and blanking punch；Multiple cavity plates to match with punch-pin are provided with the die block, multiple cavity plates are pressed
According to order arrangement be followed successively by several stretching cavity plates, punching concave die, first time correcting die, expand uropore cavity plate, widen end cavity plate,
Second of correcting die and blanking die, the blanking channel connected with blanking die is further opened with the lower mould.
By using above-mentioned technical proposal, continuous punch forming, multiple working procedure are carried out to middle pipe using continuous stamping die
It is integrated in upper and lower mould, is realized per procedure by the punch-pin and cavity plate that match, can effectively ensure that product in every procedure
In precision, while using continuous stamping die can it is continuously shaped go out product, be substantially improved production efficiency, reduce equipment cost；
Secondly by some stretching convex dies and the stretching cavity plate of cooperation, carry out multiple continuous punching stretch and be slowly formed middle pipe substantially
Profile, and shaping is carried out to stamping before punching and blanking, Forming Quality is improved, product directly can be led to by blanking after blanking
Road output preferably improves production efficiency.
Preferably, it is additionally provided with the punch retainer between piercing punch and first time shaping terrace die
Punch-pin is torn, the die block is provided with the tear cavity plate to match with tear punch-pin；The tear cavity plate includes tear
Block, the tear block have a through hole passed through for stamping, the axis side of circumferential uniform oriented through hole at the inwall of the through hole
Some cutter blocks of extension.
By using above-mentioned technical proposal, stamping can cause tube wall meeting after tear cavity plate was carried out in the presence of cutter block
It is punctured and forms charging hole, when charging hole may be such that sizing material flows in some injection channels in injection moulding process, part glue
Material can enter in the injection channel of internal layer the supplement for carrying out sizing material from charging hole, and injection channel is by between adjacent two levels of metal
Existing gap is formed；And keep air pressure consistent with the external world by the injection channel inside charging hole, effectively prevent
When sizing material is by the injection channel of outer layer, middle pipe is caused to be crushed and that adjacent two levels of metal occurs is mutual because injection pressure is present
Contact situation, while injection pressure can be reduced, improve yield rate.The shaping of charging hole utilizes axle of the stamping in cavity plate is torn
To slide when, stamping can pass through tear block on cutter block and formed in the presence of cutter block on tube wall, can disposal molding it is more
Individual charging hole processing efficiency is higher, and the position that charging hole is opened up can keep certain, equally higher in machining accuracy.
Preferably, the tear cavity plate also includes that block die socket in axial sliding, the die socket relative can be torn
It is arranged in including some in through hole and the mould bases for complementation of staggering with cutter block, some mould bases are enclosed to be formed at middle part and limited for stamping part
The die holder passage that position houses.
, can be spacing in some mould bases institutes when stamping slides axially in tear block by using above-mentioned technical proposal
In the die holder passage enclosed, spacing, the position essence that preferably raising charging hole opens up diametrically to stamping is improved
Degree, while improve the Forming Quality of stamping charging hole.
Preferably, it is additionally provided with the punch retainer between second of shaping terrace die and blanking punch
Blanking pre-processes punch-pin, and the die block is provided with the blanking to match with blanking pretreatment punch-pin and pre-processes cavity plate.
By using above-mentioned technical proposal, stamping, can be in stamping and the junction shape of copper strips after being pre-processed by blanking
Into a cut channel, and then facilitate follow-up blanking to ensure the flatness of cut surface after blanking simultaneously, preferably improve shaping matter
Amount.
Preferably, to strain stretch cavity plate, punching concave die, tear cavity plate, first time correcting die, expansion in the lower mould
Uropore cavity plate, widen and hold the bottom of cavity plate, second of correcting die and blanking pretreatment cavity plate to be provided with thimble, the top
The bottom of pin is provided with forces thimble to have the elastic component toward punch retainer side movement tendency all the time.
By using above-mentioned technical proposal, the setting of thimble completes a procedure backlash part with reference to the elastic component of bottom
It can depart from the presence of thimble from cavity plate side, improve the continuity and stability of shaping.
Preferably, the stretching convex die arrange in sequence be followed successively by first time stretching convex die, stretch for the second time it is convex
Mould, third time stretching convex die, the 4th stretching convex die, the 5th stretching convex die, the 6th stretching convex die；The stretching cavity plate is pressed
Cavity plate, the 4th stretching cavity plate, the 5th are stretched according to first time stretching cavity plate, second of stretching cavity plate, third time is sequentially followed successively by
Secondary stretching cavity plate, the 6th stretching cavity plate.
By using above-mentioned technical proposal, the general profile of middle pipe is gone out by six drawing and formings, every time can be according to design
Extensibility stamping is stretched, it is ensured that the quality of drawing and forming.
In summary, the utility model has the advantages that：
1st, using continuous stamping die using copper strips as base material, inputted by worked copper band to being connected in continuous stamping die
Continuous shaping, improve the production efficiency of product；
2nd, multiple punching stretch is carried out after copper strips sorting first to be formed in the extensibility raising for ensureing each punching stretch
Forming Quality before pipe shaping, and carries out tear process to stamping, using cavity plate and punch-pin cooperation disposably on tube wall into
Type goes out multiple charging holes, and the shaping twice during combination ensures surface quality of the stamping after tear and punching stretch, most
First pre-processed before blanking afterwards, improve blanking when convenience and ensure incision flatness, improve Forming Quality.
Brief description of the drawings
Fig. 1 is the structural representation of earphone contact pin in the prior art；
Fig. 2 is the structural representation of continuous stamping die；
Fig. 3 is the structural representation that multiple punch-pin and cavity plate match；
Fig. 4 is decomposing schematic representation of the second level middle pipe with tearing cavity plate each several part；
Fig. 5 is scheme of installation of the second level middle pipe in tear cavity plate；
Fig. 6 is the structural representation of the second level middle pipe after blanking pre-processes；
Fig. 7 is the structural representation of second level middle pipe after blanking.
In figure：1st, PIN levels；2nd, second level middle pipe；21st, the first injection channel；22nd, uropore；23rd, big end；24th, charging hole；
25th, cut channel；3rd, third level middle pipe；31st, the second injection channel；4th, the big set of the fourth stage；41st, the 3rd injection channel；10th, upper bolster；
20th, upper padding plate；30th, punch retainer；301st, first time stretching convex die；302nd, second of stretching convex die；303rd, third time stretches
Punch-pin；304th, the 4th stretching convex die；305th, the 5th stretching convex die；306th, the 6th stretching convex die；307th, piercing punch；
308th, punch-pin is torn；309th, first time shaping terrace die；310th, uropore punch-pin is expanded；311st, end punch-pin is widened；312nd, second of shaping
Punch-pin；313rd, blanking pretreatment punch-pin；314th, blanking punch；40th, stripper plate；50th, die block；501st, stretch for the first time recessed
Mould；502nd, second of stretching cavity plate；503rd, third time stretching cavity plate；504th, the 4th stretching cavity plate；505th, the 5th stretching is recessed
Mould；506th, the 6th stretching cavity plate；507th, punching concave die；508th, cavity plate is torn；508a, tear block；5081st, through hole；5082nd, knife
Block；508b, die socket；5083rd, sliding shoe；5084th, mould bases；5085th, die holder passage；508c, sliding seat；5086th, sliding channel；
509th, first time correcting die；510th, uropore cavity plate is expanded；511st, end cavity plate is widened；512nd, second of correcting die；513rd, blanking
Pre-process cavity plate；514th, blanking die；60th, lower bolster；70th, die shoe；71st, blanking channel；80th, copper strips；90th, thimble；91st, bullet
Property part.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 2, a kind of continuous stamping die of earphone contact pin middle pipe, it is installed on punch press and specifically includes mould and phase
The lower mould coordinated, upper mould include upper bolster 10, upper padding plate 20 and the punch retainer 30 being from top to bottom sequentially connected, lower mould bag
The die shoe 70 being sequentially connected from the bottom to top, lower bolster 60, die block 50 and stripper plate 40 are included, wherein upper mould can be by rushing
The actuating unit of bed is driven towards the lower lateral movement of mould one.
Referring to Fig. 3, punch retainer 30 is provided with multiple punch-pin, and according to the distributing order in figure from a left side to by being followed successively by
First time stretching convex die 301, second of stretching convex die 302, third time stretching convex die 303, the 4th stretching convex die the 304, the 5th
Secondary stretching convex die 305, the 6th stretching convex die 306, piercing punch 307, tear punch-pin 308, first time shaping terrace die 309, expansion
Uropore punch-pin 310, widen end punch-pin 311, second of shaping terrace die 312, blanking pretreatment punch-pin 313 and blanking punch 314.
Corresponding is provided with multiple cavity plates to match with punch-pin on die block 50, also according to the row in figure
Cloth order is from a left side to by being followed successively by stretching cavity plate 501, second stretching cavity plate 502, third time stretching cavity plate 503, for the first time
Four times stretching cavity plates 504, the 5th time stretching cavity plate 505, the 6th time stretching cavity plate 506, punching concave die 507, tear cavity plate 508,
First time correcting die 509, expand uropore cavity plate 510, widen and hold cavity plate 511, second of correcting die 512, blanking pretreatment recessed
Mould 513 and blanking die 514.Each punch-pin completes one of process to formed product with corresponding cavity plate.
In addition, to strain stretch cavity plate, punching concave die 507, tear cavity plate 508, first time correcting die 509, expansion in lower mould
Uropore cavity plate 510, widen and hold the bottom of cavity plate 511, second of correcting die 512 and blanking pretreatment cavity plate 513 to be respectively provided with
There is thimble 90, the bottom of thimble 90 is additionally provided with forces thimble 90 to have the bullet toward the side movement tendency of punch retainer 30 all the time
Property part 91, the elastic component 91 can be compression spring, waveform elastic or disc spring etc..
Referring to Fig. 4 and Fig. 5, tear cavity plate 508 includes cylindrical sliding seat 508c, is connected to above sliding seat 508c
Tear block 508a and sliding are connected to sliding seat 508c with tearing the die socket 508b in block 508a.Tear block 508a wherein
Portion offers through hole 5081, in being provided with the uniform cutter block 5082 of some circumferences, the length of cutter block 5082 on the inwall of through hole 5081
Identical with the height for tearing block 508a and some cutter blocks 5082 are spent to tear block 508a axis side to extend.
Sliding seat 508c inside offer sliding channel 5086 and tear block 508a effect by sliding channel 5086
It is one side closed.Die socket 508b includes sliding shoe 5083 and has the upper end of sliding shoe 5083 vertically extending some mould bases upwardly
5084.Wherein sliding shoe 5083 is contained in sliding channel 5086, and die socket 508b bottom is connected on one end of thimble 90,
Sliding shoe 5083 can be acted on thimble 90 in the axial displacement in sliding channel 5086 and so that elastic shape occurs for elastic component 91
Become；Some mould bases 5084 may pass through tear block 508a through hole 5081 equally can along the axially displaced of through hole 5081, and
Complementation is formed with some cutter blocks 5082 to completely enclose the peripheral edge portion of through hole 5081, is enclosed in addition at the middle part of some mould bases 5084
Into a die holder passage 5085.
The specific action that specific second level middle pipe 2 is torn in tear cavity plate 508 is：Second level middle pipe 2 can torn
Split and slowly enter in die holder passage 5085 and be finally completed spacing under the drive of punch-pin 308, tear punch-pin 308 continues to the
Two level middle pipe 2 exerts a force, and now second level middle pipe 2 together slides axially with die socket 508b along tear block 508a, and is tearing
In cleavage block 508a in the presence of cutter block 5082 tube wall of second level middle pipe 2 be punctured disposal molding go out with inside connect it is multiple
Charging hole 24.
Fig. 6 shows that second level middle pipe 2 substantially forms by the pretreated structure of blanking, uropore 22 with adjacent segment
Stepped, charging hole 24 is opened on the tube wall of 23 sides of big end, and the upper edge at end 23 has the cut channel 25 of annular greatly.
With reference to Fig. 6 and Fig. 7, second level middle pipe 2 separates at cut channel with base band, due to the presence of cut channel 25 be easy to finally
Blanking and the flatness of incision can be ensured.
Second level middle pipe 2 stretches to copper strips between upper mould and lower mould, power of the upper mould in punch press using copper strips as base material
Mechanism driving close to or moves back and forth away from lower mould, one end of copper strips was progressively entered upper and lower under the traction of outside
Each punch-pin and cavity plate in mould, and last blanking is reclaimed from the output of blanking channel 71.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (6)
1. a kind of continuous stamping die of earphone contact pin middle pipe, including upper mould and lower mould, it is characterised in that the upper mould includes
The upper bolster being from top to bottom sequentially connected（10）, upper padding plate（20）And punch retainer（30）, the lower mould include by it is lower extremely
On the die shoe that is sequentially connected（70）, lower bolster（60）, die block（50）And stripper plate（40）；Wherein described punch-pin is consolidated
Fixed board（30）On be provided with multiple punch-pin, multiple punch-pin are arranged in sequence is followed successively by several stretching convex dies, piercing punch
（307）, first time shaping terrace die（309）, expand uropore punch-pin（310）, widen end punch-pin（311）, second of shaping terrace die（312）
And blanking punch（314）；The die block（50）On be provided with multiple cavity plates to match with punch-pin, multiple cavity plates are pressed
Several stretching cavity plate, punching concave dies are followed successively by according to order arrangement（507）, first time correcting die（509）, expand uropore cavity plate
（510）, widen end cavity plate（511）, second of correcting die（512）And blanking die（514）, it is further opened with the lower mould
With blanking die（514）The blanking channel of connection（71）.
2. the continuous stamping die of earphone contact pin middle pipe according to claim 1, it is characterised in that the punch retainer
（30）On be additionally provided with positioned at piercing punch（307）With first time shaping terrace die（309）Between tear punch-pin（308）, it is described
Die block（50）It is provided with and tear punch-pin（308）The tear cavity plate to match（508）；The tear cavity plate（508）Bag
Include tear block（508a）, the tear block（508a）With the through hole passed through for stamping（5081）, the through hole（5081）It is interior
Circumferential uniform oriented through hole at wall（5081）Axis side extension some cutter blocks（5082）.
3. the continuous stamping die of earphone contact pin middle pipe according to claim 2, it is characterised in that the tear cavity plate
（508）Also including can relative tear block（508a）Die socket in axial sliding（508b）, the die socket（508b）Including some
It is arranged in through hole（5081）In and and cutter block（5082）Stagger complementary mould bases（5084）, some mould bases（5084）Enclosed at middle part
Form the die holder passage for the spacing collecting in stamping part（5085）.
4. the continuous stamping die of earphone contact pin middle pipe according to claim 2, it is characterised in that the punch retainer
（30）On be additionally provided with positioned at second of shaping terrace die（312）With blanking punch（314）Between blanking pretreatment punch-pin
（313）, the die block（50）It is provided with and pre-processes punch-pin with blanking（313）The blanking pretreatment cavity plate to match
（513）.
5. the continuous stamping die of earphone contact pin middle pipe according to claim 4, it is characterised in that corresponding in the lower mould
Stretch cavity plate, punching concave die（507）, tear cavity plate（508）, first time correcting die（509）, expand uropore cavity plate（510）, widen
Hold cavity plate（511）, second of correcting die（512）And blanking pretreatment cavity plate（513）Bottom be provided with thimble（90）,
The thimble（90）Bottom be provided with and force thimble all the time（90）With past punch retainer（30）The bullet of side movement tendency
Property part（91）.
6. the continuous stamping die of earphone contact pin middle pipe according to claim 1, it is characterised in that the stretching convex die is pressed
First time stretching convex die is followed successively by according to order arrangement（301）, second of stretching convex die（302）, third time stretching convex die（303）、
4th stretching convex die（304）, the 5th stretching convex die（305）, the 6th stretching convex die（306）；It is described stretching cavity plate according to
Order is followed successively by stretching cavity plate for the first time（501）, second stretching cavity plate（502）, third time stretching cavity plate（503）, the 4th time
Stretch cavity plate（504）, the 5th stretching cavity plate（505）, the 6th stretching cavity plate（506）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720945955.3U CN207043152U (en) | 2017-07-31 | 2017-07-31 | A kind of continuous stamping die of earphone contact pin middle pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720945955.3U CN207043152U (en) | 2017-07-31 | 2017-07-31 | A kind of continuous stamping die of earphone contact pin middle pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207043152U true CN207043152U (en) | 2018-02-27 |
Family
ID=61498767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720945955.3U Withdrawn - After Issue CN207043152U (en) | 2017-07-31 | 2017-07-31 | A kind of continuous stamping die of earphone contact pin middle pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207043152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350350A (en) * | 2017-07-31 | 2017-11-17 | 慈溪市佳晶电子有限公司 | A kind of continuous stamping die and process for stamping of earphone contact pin middle pipe |
-
2017
- 2017-07-31 CN CN201720945955.3U patent/CN207043152U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350350A (en) * | 2017-07-31 | 2017-11-17 | 慈溪市佳晶电子有限公司 | A kind of continuous stamping die and process for stamping of earphone contact pin middle pipe |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180227 Effective date of abandoning: 20230728 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180227 Effective date of abandoning: 20230728 |